Seamless Steel Pipe Noble Industrial Group Limited(Liaocheng Noble International Trade Co., Ltd-- Ever Shine Supply Chain Co., Ltd ) Base Info Type:SeamlessTechnique:Cold DrawnMaterial:Alloy SteelSurface Treatment:Polished Description Pre:Hot DIP Sch40 A53 API 5L ERW Spiral Welded /Welding/ Alloy /Iron Galvanized Hollow Section Ms Gi Square/Rectangular/Round Carbon Steel Pipe Next:Top Quality ASTM A36 St37 1020 Carbon Steel Sheet Plate