As a large non-regional corporation of national level, have many years experience about producing valve, CHINA TIANSHENG VALVE CO., LTD. is a hi-tech valve manufacturer integrating research, development, production, sales and service. The main products is butterfly valve, gate valve, check valve, globe valve, ball valve and so on, the standard according to GB, API, DIN & JIS. Have more than 60 filiales in China. Tiansheng is a network supplier for China National Electric Power Corporation, a network supplier of Sinopec, a network supplier for Petro China Company Limited, A class AAA enterprises of Industrial and Commercial Bank of China, as well as a member enterprise of China Valve Guild. We have import & export license, ISO9001-2000(CQC) certificate, CE certificate from DNV, API 6D certificate and National Manufacture License of Special Equipment (AZ). One of the top 30 pump and valve manufactures in Wenzhou E-mail :xxxxx