Making auto parts companies into high-tech enterprises In early 2011, although the American auto industry did not completely shake off the impact of the international financial crisis, at the North American Auto Show held in Detroit, Auto City, the Ford, General Motors, and Chrysler were the three giants of the US auto industry. Reloading the show, Volkswagen, Toyota, Honda and other international auto brands are also on the scene. Whether it is the display of elaborate booths, new technology and new cars, or the expressions of exhibitors and reporters who have come to cover the auto show, North American cars can be seen. The industry is showing signs of recovery.
Just as a car is made up of thousands of parts, the North American auto industry is also supported by a huge auto parts industry. When people are concerned about the ups and downs of the three major automobile companies in the United States, North American auto parts companies also experienced a lot of life and death baptism. When the American auto exhibitors at the 2011 North American Auto Show began to show their smiles, what about the situation of auto parts companies in North America? During the North American Auto Show, reporters visited several auto parts companies headquartered in Michigan to view the Panthers and found that North American parts companies survived the international financial crisis because these companies all had something in common: These companies produce completely different products, but the reason they can survive the crisis is almost the same, that is, to master their own unique R & D capabilities and technologies.
When it comes to interviewing auto parts companies, most of them would think of scenes involving the assembly of an automated production line and various parts and components production workshops. There will be "quality control", "advanced technology and equipment," etc. in mind. noun. However, when they actually entered the headquarters of these automobile parts companies located in the periphery of Detroit, they found that they felt very different, as if they were entering a family scientific research institution.
Mirrortech, headquartered in Zeeland, Michigan, is a supplier of automotive parts that gives such an impression. Jingtai’s headquarters is not an aggressive high-rise building, but a building with only two floors but a long horizontal layout. This is a headquarters that integrates R&D and factory manufacturing, but it is more like a warm and wise study. mechanism. Here, R&D center, engineering management department and manufacturing production line are in the same building. They think that this can better enable engineers to control the entire production process.
"The company, founded in 1974, is the leading supplier of automatic anti-glare rearview mirrors and camera-based active safety systems to serve the global automotive industry." This is the company's own profile. The reporter initially thought that this was only a company that produced car mirrors, but later found that this understanding was inaccurate. With his sales engineering manager Craig L. Piersma said, “Jingtai produces not just a mirror, but an electronic product, or an information delivery platform.†Fred Thai, chairman and chief executive officer of Jingtai. Bauer's position for himself is electronics manufacturers. “Jingtai was able to reach today through the spirit of invention, starting with electronic anti-glare rearview mirrors, and through a series of inventions, integrated various new functions into the mirror.†Fred T. Bauer believes that the power of innovation supports Jingtai to overcome various difficulties and also helped Jingtai achieve sales of US$816 million in 2010. In Jingtai, R&D expenditures account for approximately 8% of net sales. Of the 2900 employees worldwide, approximately 20% are technical or R&D personnel.
The small car rearview mirror is a very simple part, but Jingtai has only made a remarkable performance by relying on this rearview mirror, precisely because they have turned the mirror into a platform and a carrier through technology. The mirror has more features. Taking his “specialty skillsâ€, Jingtai uses patented electrochromic technology to automatically darken the rearview mirror based on the light intensity of the headlamp of the trailing vehicle. More than 97% of the company’s revenue today comes from automatic anti-glare rearview mirrors sold to almost all major automakers around the world.
Through a single component, Mirrortech made the mirror an electronic module, from the initial compass guidance, static display outside the car temperature, to the high-resolution video display that can be displayed in 2007 when reversing the image, and then to the car. Manufacturers' lane departure warnings, traffic signal recognition and vehicle detection and other driving assistance alarm information, license plate images and logos are integrated into the rearview mirror display.
In addition to the display function, Mirrortech also integrates many sensors on the rearview mirror. For example, they developed a high-beam assist system called SmartBeam, which uses a CMOS (Complementary Metal Oxide Semiconductor) image sensor and an operation decision system to realize automatic switching of high-beam and low-beam lights according to road lighting conditions using a camera system. Features. Since its launch in 2004, the first generation of SmartBeam imaging equipment has supplied about 2 million units for more than 50 different models in Europe and the United States. The second-generation and third-generation SmartBeam systems will also be more intelligent. They can not only switch between near and far lights, but also can increase or decrease the light range of the low beam lights according to the road conditions, and even automatically adjust the headlights to illuminate only the opposite side of the vehicle or the front. The surrounding area of ​​the vehicle creates a "light blocking area" or "no glare area."
John Arnold, Vice President of Operation Mirror Technologies, said: “Jingtai is a high-tech enterprise and we prefer to talk about technology and engineering.†This kind of discourse seems to apply to the Federal-Mogul Group, which is nearly 80 years older than Jingtai. Heading into the Federal-Mogul headquarters in Southfield, Tommy was surrounded by 10 engineers from various product areas in a small conference room where reporters interviewed. They assembled powertrains, engine seals and bearings, and vehicles. The major product lines and advanced technologies of the Federal-Mogul Group, including safety and protection systems, provide detailed and professional presentations.
The Federal-Mogul Group's products are closer to what most people think of as auto parts, such as pistons, piston rings, cylinder liners, bearings, and brake discs. In the past, such products were mostly on the production line. More attention was paid to the manufacturing process. However, at the Federal-Mogul Group, it was the technical support behind these seemingly ordinary parts.
In Fawmen's Plymouth Technology Center in Michigan, product design, analysis, engineering applications, friction analysis, metrology, engine testing, component composition testing, engine performance analysis, real-time measurement, etc. A variety of experiments and tests. Here, you can see X-ray photoelectron spectroscopy spectrometers that analyze the surface molecular structure of most parts that can be seen by research institutions, and advanced experimental equipment such as electronic scanners that analyze the chemical composition of surfaces by electric waves; here you can also see A real-time friction measurement test bench developed in cooperation with Tokyo Metropolitan University and a single-cylinder gasoline engine test rig set with the concept of a floating cylinder sleeve can directly measure the friction loss of the piston and piston ring and provide accurate product design. First-hand material.
It is precisely because of the metallurgical structure of the material and the in-depth research and development of the entire chain that mimics the state tests under actual conditions, it is possible to diversify the product of the 110-year-old auto parts group and apply it. 250 kinds of car platforms and 700 kinds of power systems. Currently, the Federal-Mogul Group has 18 networked technology centers around the world. In the past five years, R&D investment has reached 800 million U.S. dollars. From 2005 to 2009, Federal-Mogul scientists and engineers have obtained more than 2,000 patents.
In the Chinese market, we will invest more in the opening of the North American car in 2011. The chairman and president of several major automobile companies appeared at the conference. Interestingly, although they were in North America, they had a lot of prosperity in the Chinese market during their speeches. The pulling effect of the recovery of the world automobile industry has given a high evaluation, and has expressed concern for the Chinese market.
In the international automotive industry, automakers adopt more global purchasing methods. This makes it possible to rank among the world's top 100 auto parts suppliers. Almost all of them have global development strategies, follow the pace of automakers, and have a track record in the world. Car market. Initially, it was followed by a vehicle company. Well-known auto parts manufacturers in North America came to China to supply multinational auto companies. Gradually, they are paying more and more attention to this rapidly growing auto market and begin to continuously increase the importance of the Chinese market in their global operations.
As a sponsor of the 2011 North American Auto Show, the Cooper Standard Automotive Parts Group, which specializes in the manufacture and sale of automotive systems and components, hopes to achieve faster development in the Chinese market.
Headquartered in Novi, Michigan, Cooper Standard Auto Parts Group was once a subsidiary of Cooper Rubber & Tire Group, Inc., which is responsible for the parts and components business. It provides the original parts for OEMs. In 2004, Cooper Standard was separated from the group company and operated independently. After completing a series of acquisitions, its product line continued to be enriched. The company has operating agencies in 18 countries around the world. 50% of its sales are from outside North America. The products mainly include four major systems, namely the car body sealing system, fluid processing system, thermal management system and seismic system. . The body seal system is designed with clever dynamic and static sealing systems designed to keep noise, dust and water away from occupants; fluid management systems, also known as fuel, brake and exhaust systems, including fuel and brake tubing, tracks and Tube bundles, as well as power management circuits for power steering, convertible roofs and truck compartments; thermal management systems, complete heating and cooling management systems designed for hybrid vehicles, electric vehicles and internal combustion engines; seismic systems, a series of Anti-seismic control products, as well as a complete powertrain and body mounting system. In these four product systems, the body sealing system is the world's first, and the fluid handling system and thermal management system are the second in the world.
James S, chairman and CEO of Cooper Standard Automotive Parts Group. McElya said: "Cooper Standard has always had a global development strategy. According to the changes in the layout of automakers' businesses, Asia-Pacific, especially China, is an important market. Kubo Standards will accelerate development in the Asia-Pacific region as soon as possible, and we must keep up with this market. Changes.†Cooper’s revenue growth rate in Asia is much higher than the growth rate of auto production in this region. As of the third quarter of 2010, Asian sales accounted for 8% of Cooper’s total standard sales. And 6 years ago this figure was still 4%.
"Cooper Standards based on strategic considerations will be based in Asia Pacific headquarters in Kunshan, China. In Kunshan also established a regional technology center and production of body seal systems, fluid management systems and anti-shock system products of the flagship factory." Cooper standard car Joseph J, vice president and executive director of Fittings Asia Pacific. Emmi said that in the seven wholly-owned factories and six joint ventures in Asia, there are two and three in China respectively. Among the 15 production facility operations, 8 are located in China. Except for Kunshan, factories in Shanghai, Wuhu, Panyu and Huai'an produce body sealing system products, and factory production fluid management system products in Changchun and Chongqing; located in Jingzhou. The factory produces a fluid management system. In recent years, the Cooper Standard has continuously invested heavily in the Asian region including the Chinese market, introducing the most advanced technologies, facilities and production processes. The investment in this area has exceeded US$27 million.
Currently, Cooper Standard is actively looking for opportunities to expand its business in China. Since Cooper's standard thermal management system is still very small in China, they hope to find partners or acquisition opportunities in this product line. JamesS. McElya said that Cooper Standards uses a variety of different models to cooperate in the world, including wholly-owned factories and joint ventures. In China, Cooper Standards hopes to look for partners who have better customer resources, have a certain business and equipment base, and develop by introducing technologies; at the same time, they hope that the products of the two parties will have joint points, such as in fluid management systems. For Chinese companies in the hose business, Cooper Standards can cooperate by introducing product technologies such as hard tubes, valves, and electric pumps.
There is also the Federal-Mogul Group that has also put its Asia Pacific headquarters in China. In June 2010, the Federal-Mogul Group announced that it has invested millions of dollars in the Pudong New Area of ​​Shanghai to establish an advanced Asia-Pacific headquarters and technology center to better serve the growing and vibrant Chinese automotive industry. The Asia-Pacific headquarters and technology center covers an area of ​​9,000 square meters. After full operation, it is expected that it will employ approximately 300 employees including engineering, sales, procurement and other administrative staff. The technology center is equipped with a dynamometer, a test shop, and a series of test equipment needed to develop and test new technologies.
“For the Federal-Mogul Group, the Chinese market is strategic, whether now or in the future,†said José Maria Alapont, Group President and CEO. “With the newly established Asia Pacific headquarters and technology center, we can engage in the most advanced technologies. Development, product development and testing work to increase technical support for engine and vehicle manufacturers.The Federal-Mogul Group’s strong investment in this region will ensure that the company provides advanced technology and innovation for the local market and export market. Leading position." As one of the Federal Network's 18 globally-connected engineering and technology centers, the Shanghai-based Federal-Mogul Asia Pacific Technology Center will provide customers with a wide range of engine and spare parts testing and will perform FMH's new product R&D work. In addition to its Asia-Pacific headquarters and technology center, Federal-Mogul has eight additional production plants in China, each producing almost all types of Federal-Mogul products.
Jingtai, which is mainly supplied for the China Automotive Joint Venture, specially arranges personnel development and China's own brand cooperation. They believe that on the one hand, Jingtai has a rich product line and can match rearview mirrors with the most basic functions such as automatic anti-glare and reversing images on low-end and mid-range models; on the other hand, China’s own brands are also emerging from The development of high-end vehicles will be the market space that Jingtai can use.
Just as a car is made up of thousands of parts, the North American auto industry is also supported by a huge auto parts industry. When people are concerned about the ups and downs of the three major automobile companies in the United States, North American auto parts companies also experienced a lot of life and death baptism. When the American auto exhibitors at the 2011 North American Auto Show began to show their smiles, what about the situation of auto parts companies in North America? During the North American Auto Show, reporters visited several auto parts companies headquartered in Michigan to view the Panthers and found that North American parts companies survived the international financial crisis because these companies all had something in common: These companies produce completely different products, but the reason they can survive the crisis is almost the same, that is, to master their own unique R & D capabilities and technologies.
When it comes to interviewing auto parts companies, most of them would think of scenes involving the assembly of an automated production line and various parts and components production workshops. There will be "quality control", "advanced technology and equipment," etc. in mind. noun. However, when they actually entered the headquarters of these automobile parts companies located in the periphery of Detroit, they found that they felt very different, as if they were entering a family scientific research institution.
Mirrortech, headquartered in Zeeland, Michigan, is a supplier of automotive parts that gives such an impression. Jingtai’s headquarters is not an aggressive high-rise building, but a building with only two floors but a long horizontal layout. This is a headquarters that integrates R&D and factory manufacturing, but it is more like a warm and wise study. mechanism. Here, R&D center, engineering management department and manufacturing production line are in the same building. They think that this can better enable engineers to control the entire production process.
"The company, founded in 1974, is the leading supplier of automatic anti-glare rearview mirrors and camera-based active safety systems to serve the global automotive industry." This is the company's own profile. The reporter initially thought that this was only a company that produced car mirrors, but later found that this understanding was inaccurate. With his sales engineering manager Craig L. Piersma said, “Jingtai produces not just a mirror, but an electronic product, or an information delivery platform.†Fred Thai, chairman and chief executive officer of Jingtai. Bauer's position for himself is electronics manufacturers. “Jingtai was able to reach today through the spirit of invention, starting with electronic anti-glare rearview mirrors, and through a series of inventions, integrated various new functions into the mirror.†Fred T. Bauer believes that the power of innovation supports Jingtai to overcome various difficulties and also helped Jingtai achieve sales of US$816 million in 2010. In Jingtai, R&D expenditures account for approximately 8% of net sales. Of the 2900 employees worldwide, approximately 20% are technical or R&D personnel.
The small car rearview mirror is a very simple part, but Jingtai has only made a remarkable performance by relying on this rearview mirror, precisely because they have turned the mirror into a platform and a carrier through technology. The mirror has more features. Taking his “specialty skillsâ€, Jingtai uses patented electrochromic technology to automatically darken the rearview mirror based on the light intensity of the headlamp of the trailing vehicle. More than 97% of the company’s revenue today comes from automatic anti-glare rearview mirrors sold to almost all major automakers around the world.
Through a single component, Mirrortech made the mirror an electronic module, from the initial compass guidance, static display outside the car temperature, to the high-resolution video display that can be displayed in 2007 when reversing the image, and then to the car. Manufacturers' lane departure warnings, traffic signal recognition and vehicle detection and other driving assistance alarm information, license plate images and logos are integrated into the rearview mirror display.
In addition to the display function, Mirrortech also integrates many sensors on the rearview mirror. For example, they developed a high-beam assist system called SmartBeam, which uses a CMOS (Complementary Metal Oxide Semiconductor) image sensor and an operation decision system to realize automatic switching of high-beam and low-beam lights according to road lighting conditions using a camera system. Features. Since its launch in 2004, the first generation of SmartBeam imaging equipment has supplied about 2 million units for more than 50 different models in Europe and the United States. The second-generation and third-generation SmartBeam systems will also be more intelligent. They can not only switch between near and far lights, but also can increase or decrease the light range of the low beam lights according to the road conditions, and even automatically adjust the headlights to illuminate only the opposite side of the vehicle or the front. The surrounding area of ​​the vehicle creates a "light blocking area" or "no glare area."
John Arnold, Vice President of Operation Mirror Technologies, said: “Jingtai is a high-tech enterprise and we prefer to talk about technology and engineering.†This kind of discourse seems to apply to the Federal-Mogul Group, which is nearly 80 years older than Jingtai. Heading into the Federal-Mogul headquarters in Southfield, Tommy was surrounded by 10 engineers from various product areas in a small conference room where reporters interviewed. They assembled powertrains, engine seals and bearings, and vehicles. The major product lines and advanced technologies of the Federal-Mogul Group, including safety and protection systems, provide detailed and professional presentations.
The Federal-Mogul Group's products are closer to what most people think of as auto parts, such as pistons, piston rings, cylinder liners, bearings, and brake discs. In the past, such products were mostly on the production line. More attention was paid to the manufacturing process. However, at the Federal-Mogul Group, it was the technical support behind these seemingly ordinary parts.
In Fawmen's Plymouth Technology Center in Michigan, product design, analysis, engineering applications, friction analysis, metrology, engine testing, component composition testing, engine performance analysis, real-time measurement, etc. A variety of experiments and tests. Here, you can see X-ray photoelectron spectroscopy spectrometers that analyze the surface molecular structure of most parts that can be seen by research institutions, and advanced experimental equipment such as electronic scanners that analyze the chemical composition of surfaces by electric waves; here you can also see A real-time friction measurement test bench developed in cooperation with Tokyo Metropolitan University and a single-cylinder gasoline engine test rig set with the concept of a floating cylinder sleeve can directly measure the friction loss of the piston and piston ring and provide accurate product design. First-hand material.
It is precisely because of the metallurgical structure of the material and the in-depth research and development of the entire chain that mimics the state tests under actual conditions, it is possible to diversify the product of the 110-year-old auto parts group and apply it. 250 kinds of car platforms and 700 kinds of power systems. Currently, the Federal-Mogul Group has 18 networked technology centers around the world. In the past five years, R&D investment has reached 800 million U.S. dollars. From 2005 to 2009, Federal-Mogul scientists and engineers have obtained more than 2,000 patents.
In the Chinese market, we will invest more in the opening of the North American car in 2011. The chairman and president of several major automobile companies appeared at the conference. Interestingly, although they were in North America, they had a lot of prosperity in the Chinese market during their speeches. The pulling effect of the recovery of the world automobile industry has given a high evaluation, and has expressed concern for the Chinese market.
In the international automotive industry, automakers adopt more global purchasing methods. This makes it possible to rank among the world's top 100 auto parts suppliers. Almost all of them have global development strategies, follow the pace of automakers, and have a track record in the world. Car market. Initially, it was followed by a vehicle company. Well-known auto parts manufacturers in North America came to China to supply multinational auto companies. Gradually, they are paying more and more attention to this rapidly growing auto market and begin to continuously increase the importance of the Chinese market in their global operations.
As a sponsor of the 2011 North American Auto Show, the Cooper Standard Automotive Parts Group, which specializes in the manufacture and sale of automotive systems and components, hopes to achieve faster development in the Chinese market.
Headquartered in Novi, Michigan, Cooper Standard Auto Parts Group was once a subsidiary of Cooper Rubber & Tire Group, Inc., which is responsible for the parts and components business. It provides the original parts for OEMs. In 2004, Cooper Standard was separated from the group company and operated independently. After completing a series of acquisitions, its product line continued to be enriched. The company has operating agencies in 18 countries around the world. 50% of its sales are from outside North America. The products mainly include four major systems, namely the car body sealing system, fluid processing system, thermal management system and seismic system. . The body seal system is designed with clever dynamic and static sealing systems designed to keep noise, dust and water away from occupants; fluid management systems, also known as fuel, brake and exhaust systems, including fuel and brake tubing, tracks and Tube bundles, as well as power management circuits for power steering, convertible roofs and truck compartments; thermal management systems, complete heating and cooling management systems designed for hybrid vehicles, electric vehicles and internal combustion engines; seismic systems, a series of Anti-seismic control products, as well as a complete powertrain and body mounting system. In these four product systems, the body sealing system is the world's first, and the fluid handling system and thermal management system are the second in the world.
James S, chairman and CEO of Cooper Standard Automotive Parts Group. McElya said: "Cooper Standard has always had a global development strategy. According to the changes in the layout of automakers' businesses, Asia-Pacific, especially China, is an important market. Kubo Standards will accelerate development in the Asia-Pacific region as soon as possible, and we must keep up with this market. Changes.†Cooper’s revenue growth rate in Asia is much higher than the growth rate of auto production in this region. As of the third quarter of 2010, Asian sales accounted for 8% of Cooper’s total standard sales. And 6 years ago this figure was still 4%.
"Cooper Standards based on strategic considerations will be based in Asia Pacific headquarters in Kunshan, China. In Kunshan also established a regional technology center and production of body seal systems, fluid management systems and anti-shock system products of the flagship factory." Cooper standard car Joseph J, vice president and executive director of Fittings Asia Pacific. Emmi said that in the seven wholly-owned factories and six joint ventures in Asia, there are two and three in China respectively. Among the 15 production facility operations, 8 are located in China. Except for Kunshan, factories in Shanghai, Wuhu, Panyu and Huai'an produce body sealing system products, and factory production fluid management system products in Changchun and Chongqing; located in Jingzhou. The factory produces a fluid management system. In recent years, the Cooper Standard has continuously invested heavily in the Asian region including the Chinese market, introducing the most advanced technologies, facilities and production processes. The investment in this area has exceeded US$27 million.
Currently, Cooper Standard is actively looking for opportunities to expand its business in China. Since Cooper's standard thermal management system is still very small in China, they hope to find partners or acquisition opportunities in this product line. JamesS. McElya said that Cooper Standards uses a variety of different models to cooperate in the world, including wholly-owned factories and joint ventures. In China, Cooper Standards hopes to look for partners who have better customer resources, have a certain business and equipment base, and develop by introducing technologies; at the same time, they hope that the products of the two parties will have joint points, such as in fluid management systems. For Chinese companies in the hose business, Cooper Standards can cooperate by introducing product technologies such as hard tubes, valves, and electric pumps.
There is also the Federal-Mogul Group that has also put its Asia Pacific headquarters in China. In June 2010, the Federal-Mogul Group announced that it has invested millions of dollars in the Pudong New Area of ​​Shanghai to establish an advanced Asia-Pacific headquarters and technology center to better serve the growing and vibrant Chinese automotive industry. The Asia-Pacific headquarters and technology center covers an area of ​​9,000 square meters. After full operation, it is expected that it will employ approximately 300 employees including engineering, sales, procurement and other administrative staff. The technology center is equipped with a dynamometer, a test shop, and a series of test equipment needed to develop and test new technologies.
“For the Federal-Mogul Group, the Chinese market is strategic, whether now or in the future,†said José Maria Alapont, Group President and CEO. “With the newly established Asia Pacific headquarters and technology center, we can engage in the most advanced technologies. Development, product development and testing work to increase technical support for engine and vehicle manufacturers.The Federal-Mogul Group’s strong investment in this region will ensure that the company provides advanced technology and innovation for the local market and export market. Leading position." As one of the Federal Network's 18 globally-connected engineering and technology centers, the Shanghai-based Federal-Mogul Asia Pacific Technology Center will provide customers with a wide range of engine and spare parts testing and will perform FMH's new product R&D work. In addition to its Asia-Pacific headquarters and technology center, Federal-Mogul has eight additional production plants in China, each producing almost all types of Federal-Mogul products.
Jingtai, which is mainly supplied for the China Automotive Joint Venture, specially arranges personnel development and China's own brand cooperation. They believe that on the one hand, Jingtai has a rich product line and can match rearview mirrors with the most basic functions such as automatic anti-glare and reversing images on low-end and mid-range models; on the other hand, China’s own brands are also emerging from The development of high-end vehicles will be the market space that Jingtai can use.
High-pressure Desorption Electrolysis
This series of equipment is oriented to the gold-loaded carbon in the gold cyanide carbon slurry process for gold desorption and electrolysis, and the gold adsorbed on the gold-loaded carbon is produced in the form of high-grade gold mud.
This series of equipment has 3 patented technologies and 5 proprietary technologies. Sodium cyanide is not used in the desorption liquid, which reduces the lean carbon grade below 100g/t. The key technology of this equipment is to ensure the balance of metal content, avoid the phenomenon of equipment "accumulation" and "floating gold", and ensure the stable and stable technical indicators of the equipment. The cost is low, and the content of technological advancement has been broadcast on the Spark Science and Technology column of CCTV in 2000. The technology passed the technical appraisal in 2003 and won the second prize of Science and Technology of the China Gold Association. The overall technical level is domestically leading. In 2006, it was designated as an energy-saving technology for gold production by the National Development and Reform Commission. In 2007, it was designated as an industry standard equipment by the National Development and Reform Commission. The equipment has obtained 3 Chinese patents, the patent numbers are: 01241537.5 01241538.5 200620029209.1
High-pressure Desorption Electrolysis,Gold Desorption Equipment,cyanide leaching,cyanide vat leaching
Changchun Gold Research Institute Co.LTD , https://www.changchunmachine.com