... Asia, Africa, Oceania, Mid East, Eastern Asia, Western alloy steel round bar 1. hot rolled ordinary carbon round barSize: 10mm ... . hot rolled high speed alloy tool steel Size: 12mm-300mm,Material: W18Cr4V, M42,W6, W9,3Cr2W8V, CrWMn, Cr12MoV, Cr12, 5CrMnMo, 5CrNiMo, ... 9SiCr, 4CrW2Si 6. hot rolled sping steel Size: 12mm-250mm,Material: 60Si2Mn ...