carbon steel ANSI flange 1) Standard:ANSI, DIN, EN1092-1, ... Type: WN, SO, PL, BL, THRD, LAP-JOINT, SW carbon steel ANSI flangeThe welding neck flange is normally referred to ... Process: Free Forging, Mould Forging, Upset Forging.Main Material:Carbon Steel,ASTM A 105, ASTM A 350 LF1, LF2 CL1 ... 347LN, 348, 348H, 904, 904L etc.Alloy Steel,ASTM A182 F1, F5a, F9, F11, F12, F22, F91Duplex stainless steel,Duplex ...