... , 38CrSi, 30CrMnSi, 20CrMnTi, 9CrSi, 9Mn2 5. hot rolled high speed alloy tool steel Size: 12mm-300mm Material: W18Cr4V, M42, W6, W9, 3Cr2W8V ... , 50CrVA, 60Si2CrVA 7. hot rolled die steel, bearing steel, carbon tool steel Size: 12mm-250mm Material: H13, T8, T9, T10, GCr15 ...