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About Changzhong 

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2020

Jointly established the Northeastern University Changzhong Intelligent Technology Industry Research Institute and the Northeastern University Changzhong Intelligent Technology Industry Research Instit

2020

2019

The large-scale railway crossing project KY-18 safety protection equipment developed in cooperation with Southwest Jiaotong University was successfully rolled off the assembly line and won the "2019 C

2019

2016

Changzhong Machinery moved into Jinxia Economic Development Zone, and Hunan Changzhong Environmental Protection Technology Co., Ltd. was established. In the same year, the research on key technologies

2016

2015

The research on the high-efficiency capture technology and equipment of PM2.5 from iron and steel sintering flue gas has passed the acceptance as a scientific and technological research project of str

2015

2012

The Changzhong trademark was rated as a Chinese trademark, the R&D institution was recognized as the Changsha Bulk Material Handling and Transportation Engineering Technology Research Center, and the

2012

2011

Completed the shareholding system transformation, officially changed its name to Hunan Changzhong Machinery Co., Ltd., the company's R&D institution was recognized as the Hunan Provincial Enterprise T

2011

2009

Changhe Machinery was rated as a high-tech enterprise, developed and produced a circular stockyard stacker and reclaimer, and realized the upgrading of bucket wheel machine products.

2009

2008

Implementing the restructuring of state-owned enterprises, Changsha Heavy Machinery Manufacturing Co., Ltd. fully undertakes its business.

2008

2006——2007

Developed a large-scale urban waste treatment equipment with a daily processing capacity of 500 tons of domestic waste, which was later applied to the 2008 Beijing Olympic Games and the 2010 Shanghai

2006——2007

1998

Developed a customs large container transmission device to fill the gap of domestic products.

1998

1987

Successful trial production of cement computer batching scale, and obtained the national mechanical and electronic product certificate and medal.

1987

1986

Changed its name to Changsha Heavy Machinery Factory. Changsha Heavy Machinery was listed as a backbone enterprise in the national machinery industry by the State Machinery Industry Committee, and bec

1986

1981—1984

In 1981, it successfully trial-produced 2 subway passenger cars for Tianjin Metro; in 1983, it began mass production of YZ22 railway passenger cars, and later retrofitted to produce YZ25 air-condition

1981—1984

1972—1981

From 1972 to 1981, 210 57mm anti-aircraft guns were produced for the army, and the production technology of the factory reached a new level.

1972—1981

1978

Developed and produced a medium-sized bucket wheel stacker and reclaimer in China, and began to produce 11-roll, 13-roll series plate straighteners and ball mill crusher series products.

1978

1965—1976

From 1965 to 1976, diesel locomotives with 20 horsepower, 40 horsepower, 380 horsepower and 600 horsepower were successfully developed and mass-produced.

1965—1976

1958—1959

From 1958 to 1959, the factory was built and named Changsha Mining General Machinery Factory.

1958—1959

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