1.steel round bar 2.Grade: A36, ST37-2, Q195, Q235, C45, S355, SCM440, 42CrMo4, etc 3.Diameter:5.5mm-250mm 4.Length: 5 ... .8m-12m steel round bar1. Standard: GB ... in export of Chinese iron/Steel wire& Wire meshes, Angle, Square bar, Round bar, Channel, Square pipe, Galvanized steel pipe,etc. Sincerely hope we ...