Forged Carbon Steel Flange: Welding Neck, Slip-on, Blind, Plate ANSI B16.5, BS4504, DIN2633, ISO 7005-1 ISO TUV Certificate Forged Carbon Steel Flange:Welding Neck Flanges, Slip-on Flanges, Blind , Plate ... , DIN2638, DIN 2573, DIN 2576,DIN 2501,DIN 86030,DIN EN 1092-1PRESSURE GRADE:6Bar, 10Bar, 16Bar, 25Bar, 40Bar3. BS ... PN6,PN10,PN16,PN25,PN40,PN50,PN110,PN150, PN260,PN420 Forged Carbon Steel Flange