China CNR Qiqihar Rail Transit Equipment Co., Ltd. was founded in 1935. It is a leading enterprise and export base in the design and manufacture of railway freight cars and railway cranes in China. It is affiliated to China CNR Corporation. The company is a large-scale enterprise group with five major units as its core business: railway freight car new construction, repair, railway crane building and repair, railway vehicle accessories manufacturing, and related diversified businesses. It now has four manufacturing bases in Qiqihar, Dalian, Harbin and Mudanjiang. It has the annual production capacity of 15,000 new trucks, 10,000 trucks for repairs, 30 cranes for construction and repair, and 15,000 for key core parts. The domestic market share of the products is more than 20%. In different historical periods of the construction of New China, the company has led three major upgrades of China's railway freight cars, and has always been the leader. Since the founding of the People's Republic of China, it has built 350,000 new railway freight cars and is known as the "Pearl of the Hand" of China's railway industry.

The company has strong research and development capabilities, has a clear leading advantage in the industry, and has long dominated the development direction of China's railway freight cars. Aiming at the rapid and heavy-duty development direction of railway freight products, the company insists on implementing the rolling development strategy of "production generation, research generation, and conception generation", based on independent innovation, strengthening original innovation, and mastering and possessing the core technology of railway freight cars of the world's advanced level. In 2008, it was rated as a national high-tech enterprise. The company has the most complete product lineup in the industry. The R&D and production of gondola cars, box cars, flat cars, hopper cars, special cars, tank cars, long trucks, railway cranes, accessories and other 9 series of more than 300 varieties of various products, not only satisfy China's railway transportation needs, and exports to more than 20 countries and regions on five continents, including Australia, New Zealand, Brazil, South Korea, Mongolia, and Kazakhstan.

 Through structural adjustment, capital operation and regional operation, the company has formed a group production and operation pattern of "two provinces and four places" with Qiqihar as the core. The company has a number of production lines with international advanced levels. The production scale and manufacturing capacity have always been in a leading position in the country. The manufacturing level and capabilities of key products and key components have reached the international advanced level. The company adheres to the implementation of quality-centric management strategies, innovates quality management, production organization management, technical management and other special management, successfully implements large market, large marketing, and large customer strategies, and initiates and implements management information construction represented by ERP. The implementation of the excellent performance management innovation project has effectively improved the management level of the enterprise. The company passed the trinity certification of quality management system, environmental management system and occupational health and safety management system earlier in the same industry, and successfully passed the AAR Association M-1003 quality system certification and EN15085 welding system certification. The company ranks among the top 500 Chinese machinery and top 500 railway equipment manufacturing companies in the world.

 Qiqihar Rail Transit Equipment Co., Ltd., the pride of China's rail transit equipment manufacturing industry, is leading the development direction of China's railway freight cars with a broad vision and strategic thinking, and contributes to the development of China and the world's railways with the outstanding style of a modern enterprise With strength, we are advancing courageously towards the goal of building a world-class railway freight car manufacturer.

The company started to use 3 sets of SRC-530SAG (flow 70m³/min, pressure 0.7MPa, voltage 10000V) air compressor from Shanghai Schneider Sunshine in 2008, which are mainly used as the gas source of nitrogen production workshop.