... , Africa, Oceania, Mid East, Eastern Asia, Western alloy steel round bar 1. hot rolled ordinary carbon round barSize: 10mm-300mm,Material ... : Q235 2. hot rolled good-quality round bar Size: 12mm-300mm,Material: 10#--45#, S20C, S45C 3. hot ... , 20CrNiMoA-40CrNiMoA, 38CrSi, 30CrMnSi, 20CrMnTi, 9CrSi, 9Mn2 5. hot rolled high speed alloy tool steel Size: 12mm-300mm,Material: W18Cr4V, M42 ...