1.Special Flanges,carbon flange,steel flange,forged flange 2.Material:stainless steel 3.Standard:ANSI,ASTM,JIS (1) ... F46, F48, F50, F52, F56, F60, F65, F70 Stainless steel flanges ASTM A182 F304/304L, F316/316L, F316H, F310, ... LBS(7) Standard: ANSI, ASME, DIN, BS, EN, JIS, GOST ASME: ANSI B16.9, ANSI B16.28, MSS SP75 DIN: DIN2605 ... cases or as per your request ANSI B16.5 Stainless Steel Blind flange