Chongqing Songzheng Engine Parts Co., LTD., located in the economic center city of western China - Chongqing. The company was founded in 2008, is a specialized in general gasoline engine valve, motorcycle valve, automotive engine valve research and development, sales and production of professional units. Up to now, it has formed an annual production capacity of 24 million valves. Now has more than 150 employees, including 12 senior technicians, with automatic stamping, automatic pier forming...[ See more.. ]