... Material :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, ... ,BL,SW,TH flanges,pipe end cap,eccentric/concentric reducers ;seamless steel pipe (SMLS) ,and LSAW pipe! The sizes: ...