Tianjin tanggu water-seal valve , co ., ltd was established in 1997. is located in No228 Yanshan Road, Tanggu National Marine Hi-Tech Development Area , Tianjin , china , is a design and development , production , installation sales and service in one of the specialized manufacturers , the main products include center line butterfly valve , flanged butterfly valve , metal butterfly valve , check valve , ball valve , muti-function pump , gate valve , water power control valve , and their series city , and exports South America , Africa , European and Southeast Asia countries . our products are used widely in water supply and drainage , electric power .petrol chemical industry , metallurgy and trades . we has become specialized in the production and export of tanggu district center lined butterfly valve , flanged butterfly valve , gate valve , check valve , strainer and so base is widely used in water supply and drainage , electric power , petrochemical , metallurgical and other industries . Our company always orders management theory of �all for customers and all from innovation � in order to amplify competitive power and development power . we must take on creative �TWS� products continually with new ideas and realize show-piece strategy and benefit . we must supply best products and service for all customers .