Tianshun Valve was founded in 1993,and achieved ISO9001 and CE certificate in 2000.We are specialized in various of butterfly valve,check valve,gate valve,groove valve etc. Tianshun valve guarantees thata all valves will keep in good repair in2 years and 30000 times on/off without leakage.During the guarantee period, we will take all the responsibility of the losing which is caused by our quality problem. Hope we would be become your most reliable supplier in near future.Looking forward to your early inquiry. Best regards. Tracy