... Steel/Stainless Steel/Alloy Steel.StandardGB,JIS,BS,DIN.ANSI/ASTM /API,NF,GOST,EN,ISO and Non standardSize1/2"-48 ... , DIN2673B.S : BS4504 , BS4504, BS1560, BS10Stainless Steel FlangesASTM A 182, ASTM A240 304, 304L, 304H, 309, 310, 310S, 316, 316Ti,316 ... , 347H, 409, 410, 410S, 420, 430Carbon Steel FlangesASTM A234, ASTM A105, ASTM A106 etc.1) ANSI B16.5, ASME B16.47 FLANGESize range ...