... B16.5, BS4504, DIN2633, EN1092-1 ISO TUV Certificate Forged Steel Flange:Welding Neck Flanges, Slip-on Flanges, Blind , Plate Flanges, ... LF2/LF32. DIN FlangesSTANDARD:DIN2627, DIN2628,DIN2629,DIN 2630,DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN 2573, DIN 2576,DIN 2501,DIN 86030PRESSURE GRADE ... PN10,PN16,PN25,PN40,PN50,PN110,PN150, PN260,PN420 Forged Carbon Steel Flange