... :Carbon steel ,stainless steel, alloy steel TypeBS standard slip on flangesStandardANSI:ANSI B16.5ANSI B16.47MSS SP44ANSI B16.36 ... 80,GOST12836-67,GOST12821-80,GOST12821-80 TypeWelding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges ... , Orifice Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 BlanksSize 1 ...