... 1) stainless steel, carbon steel and all; 2)Standard:ANSI, DIN, BS,UNI, JIS,SABS1000/3,EN1092-01; 3)size:15 ... Plate flange etc.Applicable standard GB, ASME , ASTM, MSS ,JIS , DIN , EN, and customers' drawings for special use; Material Carbon steel, alloy ...