AS4087 FLANGE The main material for carbon steel, ... JIS B2220,DIN,BS,EN1092,GOST,UNI,AS2129,GB,HG,SH,SHJ,SGJ standard forging flanges,Plate flanges,Welding neck flange,Blind flange ... and flange buttons.The main material for carbon steel, ... , A694, ST35.8, ST45.8, ST37.2, C22.8, SS400, SM400B, 20Mn, 20 #, Q235, 16Mn, F304/304L, F316/ ...