--CSR Nanjing Puzhen was founded in 1908, has 100 years of manufacturing history, China is engaged in rail transportation equipment research and manufacture of specialized production enterprises, is China's railway equipment manufacturing industry enterprise of large first gear. The company has always been to the development of national industry and make own brand as its mission, is committed to the modern track traffic equipment development and manufacturing, to become China's railway air-conditioned double-deck passenger cars research and development base, Chinese city orbit traffic vehicle fixed-point production enterprise. The company covers an area of nearly 2000 acres, the company existing staff 5200 people, engineering and technical personnel nearly 1500 people, has1864 various types of equipment, products throughout the18railways and local railways.

The company's products include25B,25G,25K,25T each speed class product as well as the series of bogie carriage bearing, brake, and other core components, products of high-grade, serialization and pluralism. In 1992and 1997, the company developed in the short air-conditioned double-deck passenger cars and quasi high-speed air-conditioned double-deck passenger cars were awarded the National Prize for progress in science and technology"". The company developed the " two a" EMU and 160km/h tourism internal combustion EMU,200km/h track inspection car, on behalf of our country's EMU and coach manufacturing new level.