1.Cast iron wafer butterfly valves 2.Size:DN40-DN1200 3.Face to ... .Body:CI/DI/WCB/CF8/CF8M 5.OEM service ItemCast iron wafer butterfly valve SizeDN40mm-DN1200mm End flangeANSI B 16.1 ... water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc. StandardDIN,BS,ANSI,JIS,KS,GB