... 6 Alloy Steel: ASTM A 335, GR P1, P2, P5, P9, P11, P22, P91 Types : RoundSize : Seamless: 1/4 ... hot expanded,colde drawn,and hot galvanized.Steel pipe pictures:Company ProfileHuize Pipe Fitting is known for quality of the products, ... welding elbow, tee, reducer, nipple, bushing, coupling, outlet etc supplying.AS CS SS Pipe, fittings, flangesMaterial: Carbon steel, stainless steel, Alloy steel. Standard: ...