... B16.5, BS4504, DIN2633, EN1092-1 ISO TUV Certificate Forged Steel Flange:Welding Neck Flanges, Slip-on Flanges, Blind , Plate Flanges ... ,Class1500,Class2500MATERIAL: ASTM A105ASTM A694 F42/46/52/56/60/65/70ASTM A350 LF2/LF32. DIN FlangesSTANDARD:DIN2627, DIN2628,DIN2629,DIN ... ,PN10,PN16,PN25,PN40,PN50,PN110,PN150, PN260,PN420 Forged Carbon Steel Flange