stainless steel DIN flange 1) stainless steel, carbon steel and all; 2)Standard:ANSI, DIN, BS,UNI, JIS,SABS stainless steel DIN flangedin stainless flange dn25 ... , Welding Neck flange, Blind flange, Socket Welding flange, Threaded flange, Lap Joint flange and Plate flange etc.Applicable standard GB, ASME , ASTM, MSS ,JIS , DIN , EN, and ...