... under-mentioned: 1. hot rolled ordinary carbon round bar Size: 10mm-300mm Material: Q235 2. hot rolled good-quality round bar Size ... 20CrNiMoA-40CrNiMoA, 38CrSi, 30CrMnSi, 20CrMnTi, 9CrSi, 9Mn2 5. hot rolled high speed alloy tool steel Size: 12mm-300mm Material: ... Material: 60Si2Mn, 65Mn, 50CrVA, 60Si2CrVA 7. hot rolled die steel, bearing steel, carbon tool steel Size: 12mm-250mm Material: H13, ...