... 2500#Material :Carbon steel ,stainless steel, alloy steel Type150lb threaded steel so flangeStandardANSI:ANSI B16.5ANSI B16.47MSS SP44ANSI B16 ... ,GOST12821-80,GOST12821-80 TypeWelding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap ... TC/TR) ,SO ,WN,PL,BL,SW,TH flanges,pipe end cap,eccentric/concentric reducers ;seamless steel pipe (SMLS) ,and ...