... SW Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS Material: A105,Q235, WCB, ... -1989,GB/T4450-1989Germany:DIN 2573~2576,DIN 2527,DIN 2630~2637,DIN 2641~2642Japan:JIS B2220- ... ,F317L,F347H,F310S,F310H,F321,F321HSuperaustenitic stainless steel:S31254Duplex stainless steel:S31500,S31803(2205),S32304,S32205,S32760, ... machining,Drilling and Passivating high quality Stainless steel flange, 150~1500class