Chongqing Zhengyi Machinery Manufacturing Co., LTD., founded in 2006, located in Bishan District, Chongqing, China. It has been committed to the production of automotive transmission and chassis systems for nearly 20 years. We are mainly engaged in the R&D, production and customization of gearbox, transfer case, differential assembly and its components. The company has more than 20 professional technical and quality control personnel, with mature R & D,testing means and quality assurance system. With high quality and efficient production mode to maximize the satisfaction of customer needs, after years of development, the company has become a high-quality suppliers of Great Wall Motors, Foton Motors, Wuling Motors, UAZ Motors, VAZ Motors, Kubota Agricultural Machinery and other enterprises.