1.steel pipe flange,ansi flange,tube flange for pipe joint 2.1/2'' to 60'' 3. ... 5.API,CE,ISO flange steel pipe flange,ansi flange,tube flange for pipe joint 1.Products Items:Slip-on welding ... , coupling ,half coupling,cap,plug,union,hex nipple ,swage nipple,bushing,cross,outlet,etc.connecting typesocket weld or threaded (NPT or ...