Round Steel Bar: (1)Steel Grade: carbon (2)Standard: ASTM, BS ... extended to many series, including square pipes,rectangular steel pipes,round pipes and galvanized steel pipes. We also sell stainless ... spiral pipes,seamless pipes,square bars,defomed bars,flat bars,round bars,I beams, C lipped channels,angle beams,galvanized ... pipe production base.Any questions, please contact with me. Round Steel Bar