... processed 3.SS304,SS316,CF8/CF8M, 304/316 stainless steel Thread Check ValveSize: 1/2"-12"2) Pressure ... fitting: elbow 45,tee,round cap,hexagon nipple,union,bushing,barrel nipple,close nipple ,welding nipple, ... ,gate valve,check valve,globe valve,Y-strainer,sanitary valve etc.3.Quick coupling: type A,TypeB ... .Malleable iron pipe fittings such as elbow,tee,union,bushing,socket and so on5.Develop and design ...