... steel ,stainless steel, alloy steel Type150lb threaded steel so flangeStandardANSI:ANSI B16.5ANSI B16.47MSS ... GOST12821-80 TypeWelding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice ... 2 inch to 72 inch,including Elbow, bend, Tee and Cross, Concentric and Eccentric Reducer, Cap, ... /short radius elbows(EL/ES),straight / reducing tee(TC/TR) ,SO ,WN,PL,BL,SW ...