... L) Equipment Quality Control: Our products :carbon steel ,alloy steel ,stainless steel pipes and pipe fittingssuch as: long/short radius ... pipe end cap,eccentric/concentric reducers ;sprial welded steel pipe (SSAW),seamless steel pipe (SMLS) ,and LSAW pipe! The ... flat face(FF); threadedForged fittingsType:Elbow, Tee, Union, Cross, Coupling, Cap, Bushing, Plug, Swage Nipple, Hexagon Nipple,Nipple, ...