I was curious about the word "diamond" when I was just sensible, because I always heard the most frequently used vocabulary from the conversation between my father and his colleagues. What kind of things do you need so many technicians to sleep and forget? What kind of charm makes them shine with hope when they talk about diamonds? Until one day when I was in high school (1978), my father returned home with a red certificate. His face was full of happiness and joy. He told his mother that he had just attended the National Science and Technology Conference in Beijing and represented Zhengzhou at the meeting. The Abrasives Grinding Institute accepted the reception and awards from the central leadership. At this time, I really learned for the first time how important diamonds are to the development of our country. I learned that my father and his colleagues have done great things with scientists from only a few developed countries. I admire my father even more. I feel very proud of having such a father.
In my forty years with my father, I read and appreciated his people and his achievements as a book. But the more I read, the more I feel that there is deep esoteric in the plain, especially when it comes to the research content of diamond and high-pressure physics that he is passionate about. My layman can only sigh: It is really difficult to engage in technology. At the same time, they saw the professionalism of their generation and the spiritual enjoyment that they made through technological breakthroughs.
In 1999, my father took a group photo in Sanya , Hainan. 1. I graduated from the university in 1988 and started working in the industry planning office of the Institute of Abrasives. With the continuous understanding of the abrasive industry, my work on my father and his research results are more and more comprehensive. Gradually I found out that although my father lives with us every day, we don't fully understand his work status and achievements.
The first artificial diamond project in China, which he and other technicians such as Uncle Wang Guangzu and his colleagues completed on December 6, 1963, had the greatest impact. This is what I know very early. Later in the reading industry related materials, I was surprised to see that the artificial polycrystalline diamond project that my father had completed in 1972 was also an amazing project. The silicon-based bond polycrystalline diamond developed by their research group has no such products at home and abroad. It was not until more than a decade later that De Beers of the UK launched a similar product, Syndax 3. Such polycrystalline diamond has the most remarkable characteristics of good heat resistance and self-sharpness. The results were later applied to oil drilling, geological drilling, wire drawing dies, wear-resistant devices and other fields, making great contributions to the technological advancement of diamond tools. In particular, the three-blade drill bit made of this kind of polycrystalline diamond in Shengli Oilfield has created a world record of 3,150 meters. In Daqing Oilfield, he realized "a drill bit and hit a well one day" and completed the "three ones" pledge of the iron man Wang Jinxi. From the successful development of this kind of polycrystalline diamond, it has at least affected the development of polycrystalline diamond for more than 20 years. Until the mid-1990s, domestic polycrystalline diamond products began to turn to metal bond, and the proportion of silicon bond polycrystalline diamond in the market gradually decreased. Until now, silicon bond polycrystals still have their special features. They are widely used by petroleum drill bits because of their low cost. Due to their high heat resistance, they are still used in some specific applications. And today, few people know that the use of polycrystalline diamond as the first diameter is used from the impregnated drill bit in the 1970s, which greatly improved the life of the drill bit. This is the first in China. 2, personality
The father is an introvert, and there are not many words. His image in my mind is not sitting there thinking independently, or writing a book at the desk. After listening to my mother's talk about grandparents, this character formation of the father is very easy to understand. My grandfather Yu Junhai was the cavalry commander of the northeastern anti-Japanese general Ma Zhanshan. In 1932, after being provoked by the Japanese army after a fierce battle with the Japanese army, he was gloriously sacrificed and later chased as a martyr. Grandma was widowed when her father was just one year old. He had survived the difficult years of war. He relied on his own strength and the help of his relatives and friends to raise his only son, and he also entered a good school like Tianjin Nankai University. . It is conceivable that the father's growth period is in a turbulent era, and there is no stable and complete family. It is also a natural thing to form a heavier self-protection mentality. The hardships of adolescence also gave the father a firm and persistent quality.
The father is a very kind and gentle person. He is full of goodwill to anyone and rarely violently conflicts with people. Treating young people will never give rise to the elders. When the father is not good at talking, when you usually chat or chill, you rarely hear him say a long list. But when he and his colleagues, professors, senior engineers and his students discuss technical issues, the speed of speech will be much faster than usual, and the tone will be very smooth. Especially when encountering different opinions, it will even raise the quarrel. The state of total investment in research is deeply imprinted in my mind. 3, grievances
I remember that after a day of work during the Cultural Revolution before the smashing of the "Gang of Four", my father returned home with a frustration. My mother saw that her father was in a bad mood and repeatedly asked why. Why didn't the father say it? Later, my grandmother did not let her father say the reason, but the father had no choice but to tell the truth. It turned out that one business unit found the abrasives and found the father, saying that their units needed one thousand carats of diamonds for production and scientific research. The father recovered from the relevant personnel and did not have so many diamonds. It was a very simple business thing, and I did not know how to be known by the so-called revolutionaries at the time. They said: There are so many diamonds in the warehouse. Yu Hongchang intends to say no. It is deliberately destroying "grasping the revolution and promoting production." He is the reactionary academic authority. He wants to post his big-character poster and open his critical meeting. The father returned home after such a situation. My father felt very aggrieved because there were indeed more than a thousand carat diamond abrasives in the institute, but that was the sum of the different particle sizes of different models, and it really could not meet the needs of the brothers. He couldn't figure it out, he didn't sleep all night. Although it is not clear whether the criticism of him will be held later, the father has indeed become a negative textbook. In a drama performed by the local troupe at that time, the father became the prototype of the reverse character of the reactionary academic authority. It didn't take long for my father to return to normal from his mood and mentality, and his work was as tireless as usual. Criticizing his criticism, he accepted it with ease. Never saw him coming home with a frustrated face. I dare not say 100% that he has no wrongs in his heart, but most of the intellectuals at that time will be fully accepted as soon as they hear things arranged in the name of the party organization. They look at the work they love and the interests of the country more than anything else.
During the Cultural Revolution, politics was commanded, and a large amount of human and financial resources were used in political struggles and political movements. For academic research, the environment was harsh. Even in this situation, we can still see a lot of valuable research results. Chinese researchers are the most able to bear the burden, and the father should be a typical representative. They have not forgotten their pursuits at any time and in any environment, and have reached the realm of forgetting themselves and even sacrificing themselves. 4, the challenge
In China, technicians are generally promoted to executive leadership positions after achieving certain results. I always think that my father should be a pure research scholar. However, because of his work needs, he was promoted to become the deputy director of the abrasive research laboratory, and later promoted to the deputy chief engineer of the institute, and entered the management position. This should be a challenge for him.
The problem of concern after the father entered the management position has obviously changed. In the early days, colleagues who came to the house at night and on holidays, and professors from other places talked with him mostly about specific technical and academic issues, and discussed specific solutions. Later, they talked more about the development of diamonds at home and abroad, and the direction of diamond research in the world. He is more concerned about the direction of the domestic diamond industry.
I have read an article about my father's classification of polycrystalline diamonds. This article was later cited in many literatures on polycrystalline diamonds and was also presented at the 1988 Tokyo Diamond International Conference. The article talks about the sintered polycrystals he invented, as well as the growth-sintering polycrystals that are popular in foreign countries. In the 1980s, he focused on accelerating the research of growing sintered polycrystals and catching up with foreign research and production levels. At that time, the silicon bond-sintered polycrystalline crystal was in the middle of the country, and he has seen that the growth-sintering type is the only way for domestic polycrystalline diamond in the future. This research direction was also reflected in the research topic of polycrystalline diamond in Sanmao. In the mid-1990s, domestic polycrystalline diamonds, especially diamond composites, were basically transferred to the growth and sintering type of products, both in research and on the market. 5, dreams have a study
Our family has moved many times, and every time we move, we must first consider where my father’s desk and bookshelf are placed. When my father is at home, he will lie on his desk to read or write articles at night, so when he moves into a new home, he will always pick a relatively secluded position to place his father's desk shelf. Grandma, parents, and my brother and sister have a total of six people. No matter the early half-bedroom and the later three-bedroom and one-bedroom, the family seems to be crowded. It is not easy to arrange a bed. I used to think that if Dad had a separate study, it would be no longer necessary for us to speak loudly and crappy when he was reading. And I can also get light, I enjoy it when my father doesn't need it.
When I was in the second year of high school, my father couldn't keep the only desk. In order for me to meet the college entrance examination, the principle of taking the college entrance examination priority is implemented in the family from the living to the learning environment. I naturally rose to the first user of the desk. The father was squeezed into his bedroom. But he also has a good way. He can find a drawing board that he has not used for a long time and use it as his new desk. In this way, he began to study tirelessly in his new "Kingdom".
The study was always a dream for the father, and it was not realized in his life. The house we live in now is spacious and has an independent study. I often think that if the father and mother are still there, living with us and enjoying the study in this good environment, how wonderful! I also know clearly that this is just our desire to be a child. According to his father's character, he will never complain that there is no study. He was very satisfied with his life, he could hear his regretful words at work, but he never heard him say anything about life. 6, diamond slang
My father left us forever on September 12, 2006. In the last few years of his life, Parkinson's disease has been afflicting him, his hands are always shaking, and walking is also rickety. In my impression, in the one or two years before his death, people were already very thin, and the two gangs were completely sunken, and there was basically no meat in their hands. The brain is basically in a state of confusion. For some simple transactions, if you slow down and aggravate the tone, he can still understand some, but the reaction is very slow, and the thinking ability is reduced to a very low state. The most obvious is his eyes, his eyes are dull and there is no light. As soon as I talked about diamonds, the smiles and the confident eyes were never seen in my father's face.
However, there is one thing that makes me feel incredible so far. I remember that one year before his father died, he had lived in the Cable Factory Geriatric Hospital on Funiu Road for some time. Once we came back from Shenzhen to see him at the hospital. He suddenly told my husband, Li Shangzhen, that he wanted some of the latest diamond magazines. We were all surprised at the time, his brains were not very clear, and the speech was difficult and ambiguous. In fact, he has not seen such books and magazines for at least three or four years. Can he still read professional magazines? Although there are doubts, since the elderly have this requirement, we must be satisfied. The next day we handed over a "Seminar Collection of Superhard Materials and Products" and three "Diamond and Abrasives Engineering" magazines to him. He put on reading glasses and looked at the catalogue with a trembling hand. Although the time was not long, he could still feel the appeal of these words. He slowly raised his head and smiled at us with a strong smile on his mouth and said a word "good." We are very pleased to see that he is satisfied. After two days, we are going back to Shenzhen and come to the hospital to see him. He seemed to want to talk especially on that day, but the words he said were more difficult to understand than before. We work hard to communicate with him as much as possible. But there was a passage that we did not expect, and I have not understood his wishes so far. He said: "I originally wanted to write an article on diamond dislocations, the distribution and structure of dislocations...". The two of us were very surprised. He had never told us about such a profound professional problem before. Because of the obstacles to communication, we can't understand it further. We always felt that my father was saying "slang." Now think about it, I don’t know if my father really told us about his regrets, or whether he mixed his former memories into "one pot of porridge." The most important thing we can feel is his love of diamonds. Yes, like the first generation of diamond veterans like Wang Guangzu and Lu Feixiong, which I am familiar with, which one does not dedicate everything to diamonds. I am full of deep respect for them. 7, the small head of the fly
After the death of my father, we saw a lot of work and study notes in sorting out his relics. We found a rule, the father's notes before the age of 50, the font is larger, and the writing is relatively neat. After the notes, the font is smaller every year, and some are too small to be recognized by outsiders. It should be understood only by himself. In the things he wrote after he retired at the age of 60, it often appeared that the first few words in a line were bigger and clearer, the words behind them were getting smaller and smaller, and they were sloping down, and the lines were not very good. But it can be seen that the father is also aware of this deficiency and is trying to correct it. I thought that my grandmother told me when I was a child. When my father was a child, he was injured by the door accident because of his right thumb. His fingers are not able to use force and bend. It has a certain influence on writing and the writing speed is slow. My father has some psychological shadows on this point, and we usually talk about it. In the age of writing, he had to overcome more difficulties for his father than others.
What makes me feel great about my father is his countless cards. He made a card for every document he found, in addition to the authors and abstracts on the library cards, as well as the annotations and comments written by his head. This small head became an advantage, and the card was written in a dense manner. The age of these cards spanned his entire career. The literature is not only in Chinese, English, but also German, Russian, and even Japanese. I feel that if in today's computer age, with the click of a mouse and the keyboard, these documents will be able to be sorted out by the father, obedient, and no longer have to pay so much effort to record them one word at a time. We have enjoyed the convenience and convenience brought by the progress of the times, and we have also felt how hard the fathers have paid for the success of scientific research. Conclusion
My father studied diamonds for a lifetime. In my eyes, he is a diamond. He has a hard and persistent personality. How difficult it is, how bad the environment, and his will and determination can not change his diamond. The love of the father is facing his life with his simple and transparent character. In the face of honor, he never forgets to be invisible and happy. Never feel discouraged and never give up when encountering setbacks. He is eager to achieve success, but in the face of fame and fortune is indifferent.
China has undergone earth-shaking changes. The development of China's superhard materials industry has shocked the world. Our fathers are as happy as we are when we see today's great situation. Today's superhard materials in China cannot be separated from the hardships and dedication of our fathers, and their spirit will always inspire us to move forward.
In my forty years with my father, I read and appreciated his people and his achievements as a book. But the more I read, the more I feel that there is deep esoteric in the plain, especially when it comes to the research content of diamond and high-pressure physics that he is passionate about. My layman can only sigh: It is really difficult to engage in technology. At the same time, they saw the professionalism of their generation and the spiritual enjoyment that they made through technological breakthroughs.
In 1999, my father took a group photo in Sanya , Hainan. 1. I graduated from the university in 1988 and started working in the industry planning office of the Institute of Abrasives. With the continuous understanding of the abrasive industry, my work on my father and his research results are more and more comprehensive. Gradually I found out that although my father lives with us every day, we don't fully understand his work status and achievements. The first artificial diamond project in China, which he and other technicians such as Uncle Wang Guangzu and his colleagues completed on December 6, 1963, had the greatest impact. This is what I know very early. Later in the reading industry related materials, I was surprised to see that the artificial polycrystalline diamond project that my father had completed in 1972 was also an amazing project. The silicon-based bond polycrystalline diamond developed by their research group has no such products at home and abroad. It was not until more than a decade later that De Beers of the UK launched a similar product, Syndax 3. Such polycrystalline diamond has the most remarkable characteristics of good heat resistance and self-sharpness. The results were later applied to oil drilling, geological drilling, wire drawing dies, wear-resistant devices and other fields, making great contributions to the technological advancement of diamond tools. In particular, the three-blade drill bit made of this kind of polycrystalline diamond in Shengli Oilfield has created a world record of 3,150 meters. In Daqing Oilfield, he realized "a drill bit and hit a well one day" and completed the "three ones" pledge of the iron man Wang Jinxi. From the successful development of this kind of polycrystalline diamond, it has at least affected the development of polycrystalline diamond for more than 20 years. Until the mid-1990s, domestic polycrystalline diamond products began to turn to metal bond, and the proportion of silicon bond polycrystalline diamond in the market gradually decreased. Until now, silicon bond polycrystals still have their special features. They are widely used by petroleum drill bits because of their low cost. Due to their high heat resistance, they are still used in some specific applications. And today, few people know that the use of polycrystalline diamond as the first diameter is used from the impregnated drill bit in the 1970s, which greatly improved the life of the drill bit. This is the first in China. 2, personality
The father is an introvert, and there are not many words. His image in my mind is not sitting there thinking independently, or writing a book at the desk. After listening to my mother's talk about grandparents, this character formation of the father is very easy to understand. My grandfather Yu Junhai was the cavalry commander of the northeastern anti-Japanese general Ma Zhanshan. In 1932, after being provoked by the Japanese army after a fierce battle with the Japanese army, he was gloriously sacrificed and later chased as a martyr. Grandma was widowed when her father was just one year old. He had survived the difficult years of war. He relied on his own strength and the help of his relatives and friends to raise his only son, and he also entered a good school like Tianjin Nankai University. . It is conceivable that the father's growth period is in a turbulent era, and there is no stable and complete family. It is also a natural thing to form a heavier self-protection mentality. The hardships of adolescence also gave the father a firm and persistent quality.
The father is a very kind and gentle person. He is full of goodwill to anyone and rarely violently conflicts with people. Treating young people will never give rise to the elders. When the father is not good at talking, when you usually chat or chill, you rarely hear him say a long list. But when he and his colleagues, professors, senior engineers and his students discuss technical issues, the speed of speech will be much faster than usual, and the tone will be very smooth. Especially when encountering different opinions, it will even raise the quarrel. The state of total investment in research is deeply imprinted in my mind. 3, grievances
I remember that after a day of work during the Cultural Revolution before the smashing of the "Gang of Four", my father returned home with a frustration. My mother saw that her father was in a bad mood and repeatedly asked why. Why didn't the father say it? Later, my grandmother did not let her father say the reason, but the father had no choice but to tell the truth. It turned out that one business unit found the abrasives and found the father, saying that their units needed one thousand carats of diamonds for production and scientific research. The father recovered from the relevant personnel and did not have so many diamonds. It was a very simple business thing, and I did not know how to be known by the so-called revolutionaries at the time. They said: There are so many diamonds in the warehouse. Yu Hongchang intends to say no. It is deliberately destroying "grasping the revolution and promoting production." He is the reactionary academic authority. He wants to post his big-character poster and open his critical meeting. The father returned home after such a situation. My father felt very aggrieved because there were indeed more than a thousand carat diamond abrasives in the institute, but that was the sum of the different particle sizes of different models, and it really could not meet the needs of the brothers. He couldn't figure it out, he didn't sleep all night. Although it is not clear whether the criticism of him will be held later, the father has indeed become a negative textbook. In a drama performed by the local troupe at that time, the father became the prototype of the reverse character of the reactionary academic authority. It didn't take long for my father to return to normal from his mood and mentality, and his work was as tireless as usual. Criticizing his criticism, he accepted it with ease. Never saw him coming home with a frustrated face. I dare not say 100% that he has no wrongs in his heart, but most of the intellectuals at that time will be fully accepted as soon as they hear things arranged in the name of the party organization. They look at the work they love and the interests of the country more than anything else.
During the Cultural Revolution, politics was commanded, and a large amount of human and financial resources were used in political struggles and political movements. For academic research, the environment was harsh. Even in this situation, we can still see a lot of valuable research results. Chinese researchers are the most able to bear the burden, and the father should be a typical representative. They have not forgotten their pursuits at any time and in any environment, and have reached the realm of forgetting themselves and even sacrificing themselves. 4, the challenge
In China, technicians are generally promoted to executive leadership positions after achieving certain results. I always think that my father should be a pure research scholar. However, because of his work needs, he was promoted to become the deputy director of the abrasive research laboratory, and later promoted to the deputy chief engineer of the institute, and entered the management position. This should be a challenge for him.
The problem of concern after the father entered the management position has obviously changed. In the early days, colleagues who came to the house at night and on holidays, and professors from other places talked with him mostly about specific technical and academic issues, and discussed specific solutions. Later, they talked more about the development of diamonds at home and abroad, and the direction of diamond research in the world. He is more concerned about the direction of the domestic diamond industry.
I have read an article about my father's classification of polycrystalline diamonds. This article was later cited in many literatures on polycrystalline diamonds and was also presented at the 1988 Tokyo Diamond International Conference. The article talks about the sintered polycrystals he invented, as well as the growth-sintering polycrystals that are popular in foreign countries. In the 1980s, he focused on accelerating the research of growing sintered polycrystals and catching up with foreign research and production levels. At that time, the silicon bond-sintered polycrystalline crystal was in the middle of the country, and he has seen that the growth-sintering type is the only way for domestic polycrystalline diamond in the future. This research direction was also reflected in the research topic of polycrystalline diamond in Sanmao. In the mid-1990s, domestic polycrystalline diamonds, especially diamond composites, were basically transferred to the growth and sintering type of products, both in research and on the market. 5, dreams have a study
Our family has moved many times, and every time we move, we must first consider where my father’s desk and bookshelf are placed. When my father is at home, he will lie on his desk to read or write articles at night, so when he moves into a new home, he will always pick a relatively secluded position to place his father's desk shelf. Grandma, parents, and my brother and sister have a total of six people. No matter the early half-bedroom and the later three-bedroom and one-bedroom, the family seems to be crowded. It is not easy to arrange a bed. I used to think that if Dad had a separate study, it would be no longer necessary for us to speak loudly and crappy when he was reading. And I can also get light, I enjoy it when my father doesn't need it.
When I was in the second year of high school, my father couldn't keep the only desk. In order for me to meet the college entrance examination, the principle of taking the college entrance examination priority is implemented in the family from the living to the learning environment. I naturally rose to the first user of the desk. The father was squeezed into his bedroom. But he also has a good way. He can find a drawing board that he has not used for a long time and use it as his new desk. In this way, he began to study tirelessly in his new "Kingdom".
The study was always a dream for the father, and it was not realized in his life. The house we live in now is spacious and has an independent study. I often think that if the father and mother are still there, living with us and enjoying the study in this good environment, how wonderful! I also know clearly that this is just our desire to be a child. According to his father's character, he will never complain that there is no study. He was very satisfied with his life, he could hear his regretful words at work, but he never heard him say anything about life. 6, diamond slang
My father left us forever on September 12, 2006. In the last few years of his life, Parkinson's disease has been afflicting him, his hands are always shaking, and walking is also rickety. In my impression, in the one or two years before his death, people were already very thin, and the two gangs were completely sunken, and there was basically no meat in their hands. The brain is basically in a state of confusion. For some simple transactions, if you slow down and aggravate the tone, he can still understand some, but the reaction is very slow, and the thinking ability is reduced to a very low state. The most obvious is his eyes, his eyes are dull and there is no light. As soon as I talked about diamonds, the smiles and the confident eyes were never seen in my father's face.
However, there is one thing that makes me feel incredible so far. I remember that one year before his father died, he had lived in the Cable Factory Geriatric Hospital on Funiu Road for some time. Once we came back from Shenzhen to see him at the hospital. He suddenly told my husband, Li Shangzhen, that he wanted some of the latest diamond magazines. We were all surprised at the time, his brains were not very clear, and the speech was difficult and ambiguous. In fact, he has not seen such books and magazines for at least three or four years. Can he still read professional magazines? Although there are doubts, since the elderly have this requirement, we must be satisfied. The next day we handed over a "Seminar Collection of Superhard Materials and Products" and three "Diamond and Abrasives Engineering" magazines to him. He put on reading glasses and looked at the catalogue with a trembling hand. Although the time was not long, he could still feel the appeal of these words. He slowly raised his head and smiled at us with a strong smile on his mouth and said a word "good." We are very pleased to see that he is satisfied. After two days, we are going back to Shenzhen and come to the hospital to see him. He seemed to want to talk especially on that day, but the words he said were more difficult to understand than before. We work hard to communicate with him as much as possible. But there was a passage that we did not expect, and I have not understood his wishes so far. He said: "I originally wanted to write an article on diamond dislocations, the distribution and structure of dislocations...". The two of us were very surprised. He had never told us about such a profound professional problem before. Because of the obstacles to communication, we can't understand it further. We always felt that my father was saying "slang." Now think about it, I don’t know if my father really told us about his regrets, or whether he mixed his former memories into "one pot of porridge." The most important thing we can feel is his love of diamonds. Yes, like the first generation of diamond veterans like Wang Guangzu and Lu Feixiong, which I am familiar with, which one does not dedicate everything to diamonds. I am full of deep respect for them. 7, the small head of the fly
After the death of my father, we saw a lot of work and study notes in sorting out his relics. We found a rule, the father's notes before the age of 50, the font is larger, and the writing is relatively neat. After the notes, the font is smaller every year, and some are too small to be recognized by outsiders. It should be understood only by himself. In the things he wrote after he retired at the age of 60, it often appeared that the first few words in a line were bigger and clearer, the words behind them were getting smaller and smaller, and they were sloping down, and the lines were not very good. But it can be seen that the father is also aware of this deficiency and is trying to correct it. I thought that my grandmother told me when I was a child. When my father was a child, he was injured by the door accident because of his right thumb. His fingers are not able to use force and bend. It has a certain influence on writing and the writing speed is slow. My father has some psychological shadows on this point, and we usually talk about it. In the age of writing, he had to overcome more difficulties for his father than others.
What makes me feel great about my father is his countless cards. He made a card for every document he found, in addition to the authors and abstracts on the library cards, as well as the annotations and comments written by his head. This small head became an advantage, and the card was written in a dense manner. The age of these cards spanned his entire career. The literature is not only in Chinese, English, but also German, Russian, and even Japanese. I feel that if in today's computer age, with the click of a mouse and the keyboard, these documents will be able to be sorted out by the father, obedient, and no longer have to pay so much effort to record them one word at a time. We have enjoyed the convenience and convenience brought by the progress of the times, and we have also felt how hard the fathers have paid for the success of scientific research. Conclusion
My father studied diamonds for a lifetime. In my eyes, he is a diamond. He has a hard and persistent personality. How difficult it is, how bad the environment, and his will and determination can not change his diamond. The love of the father is facing his life with his simple and transparent character. In the face of honor, he never forgets to be invisible and happy. Never feel discouraged and never give up when encountering setbacks. He is eager to achieve success, but in the face of fame and fortune is indifferent.
China has undergone earth-shaking changes. The development of China's superhard materials industry has shocked the world. Our fathers are as happy as we are when we see today's great situation. Today's superhard materials in China cannot be separated from the hardships and dedication of our fathers, and their spirit will always inspire us to move forward.
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