... :Carbon steel ,stainless steel, alloy steel TypeBS standard slip on flangesStandardANSI:ANSI B16.5ANSI B16.47MSS SP44ANSI B16. ... ,GOST12836-67,GOST12821-80,GOST12821-80 TypeWelding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind ... , Loose Hubbed Flange, Welding Plate Flange, Welding Neck Collar, Welding-On Collar, Loose Plate Flange, Companion Flange, Plate (PL) Flange ...