... steel pipes,elbow,reducer,tee,caps,flange,tube etc.. 1) Stainless steel flange and carbon steel flange2) Standard: ... ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS3) Material: ... pipes, seamless steel pipes,elbow,reducer,tee,caps,flange,tube etc...1. Butt weld Elbow 45degree & ... happy to give you details. BS stainless steel Welding Neck Flange