... -on, Blind, Plate ANSI B16.5, BS4504, DIN2633, ISO 7005-1 ISO TUV Certificate Forged Carbon Steel Flange:Welding Neck Flanges ... , DIN2638, DIN 2573, DIN 2576,DIN 2501,DIN 86030,DIN EN 1092-1PRESSURE GRADE:6Bar, 10Bar, 16Bar, 25Bar, 40Bar3. BS FlangesSTANDARD: BS ...