Tianjin Semasry Valve Co.,ltd Our main products include wafer type butterfly valve,lug type butterfly valves,flange type butterfly valves,PTFE lined butterfly valves,check valves,gate valves,Y type strianer and rebbuer jount. We specialized in butterfly valve,resilient seat gate valve,knife gate valve,dual plate check valve and Y strainer etc.DN40-1200,0.6/1.0/1.6Mpa. We can supply different body materials such as cast iron, ductile iron, cast steel, stainless steel and bronze according to different working conditions. We hope to develop together with all friends!