Huaiji Dengyun Auto-parts (Holding) Co.,Ltd. engages in the research, production, and sale of automobile engine exhaust door series products for domestic vehicle and engine manufacturers in the People's Republic of China. The company offers valves for passenger cars, marine diesel engines, diesel engines, racing cars, industrial diesel engines, motorcycles, heavy duty trucks, and military vehicles, as well as generator units, engineering machineries, light trucks, buses, mini cars, hybrid cars, etc. It also provides threaded, special shaped, and shape specific valves. In addition, the company exports its products to the United States, Italy, Britain, Japan, Brazil, Argentina, Mexico, the Middle East, Southeast Asia, and other countries and regions. The company was founded in 1971 and is based in Huaiji, the People's Republic of China.