Yangquan Valve Co., Ltd. was founded in 1924, conversed to public-private partnership in 1955, and restructured from Yangquan Valve Plant to Yangquan Valve Co., Ltd. in 1994. It is a national key enterprise of producing low pressure large diameter valves and important base of producing gate valve; it is Shanxi Province�s �Best Enterprise�, �Meritorious Enterprise� �High-Tech Enterprises� and �Yangquan City Superior Enterprise�, China General Machinery Valve Industry Association�S Member unit, Shanxi Province Quality Association unit, and the high-tech enterprise. The company has strong technical force, large-scale excellent processing equipments, advanced production technology and perfect testing devices, and provided with sound Quality-Environmental Management System. The company mainly produces gate valves, butterfly valves, gas valves, check valves, and metallurgy valves in more than 100 series and over 1300 product specifications; among them, 58 series have filled the gap in the country, and 10 series has reached the world advanced level. The city gas valve is a technological achievement jointly promoted by State Science and Technology Commission and the Ministry of Machinery. Its domestic leading -level �three-dimensional eccentric hard sealing butterfly valve� and �hydraulic control butterfly valve�, �low-nickel-chromium alloy cast iron seawater valve� designed and manufactured for Qinshan nuclear power plant, �nuclear safety grade carbon steel valves� exported to Pakistan and �API cast iron gate valves, check valves� export to US and other Yangquan brand valves are sold throughout the country and exported to Russia, Iran, Brazil, India, Turkey and other countries, being famous at home and abroad. The company took the lead in passing ISO9001 international quality system certification in 1998, and passed ISO14001 international environment system certification in 2002. Corporate objective of Yangquan Valve Co., Ltd. is: high-quality product takes the predominant position among all the requirements. The work of all the employees is for one unanimous goal - customer satisfaction. Provide users with three satisfactions: satisfactory products, satisfactory accessories and satisfactory service.