Forged Steel Flange: Welding Neck, Slip-on, Blind, Plate flange ANSI B16.5, BS4504, DIN2633, EN1092-1 ISO TUV Certificate Forged Steel Flange:Welding Neck ... Flange, Anchoring Flange 1. ASME FlangesSTANDARD:ASME B16.5, ASME B16.47,ASME B16.48,ASME B16.36,ANSI/AWWA C207PRESSURE GRADE:Class150,Class300 ... ,PN25,PN40,PN50,PN110,PN150, PN260,PN420 Forged Carbon Steel Flange