Ống Thép Đúc - Thép Trục Hợp Kim 35CrMoV, 12Cr1MoV, 25Cr2MoV, 25Cr2Mo1VA, 20Cr3MoWVA, 38CrMoAl, 20CrV, 40CrV, 50CrV, 15CrMn, 20CrMn, 40CrMn, 20CrMnSi, 25CrMnSi, 30CrMnSi, 30CrMnSiA, 35CrMnSiA, 20CrMnMo, 40CrMnMo, 20CrMnTi, 30CrMnTi, 20CrNi, 40CrN