AS4087 FLANGE The main material for carbon steel, stainless steel and alloy steel, AS4087 FLANGEProfessionally export,designed, produced and sold such as ANSI/ASME,MSS,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, stainless steel and alloy steel, such as ASTM ...