... :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, ... steel ,alloy steel ,stainless steel pipes and pipe fittings long/short radius elbows(EL/ES),straight / reducing tee(TC/TR) ...