... Round Bar Size: 12mm-300mm Name: Hot Rolled Alloy Round Bar Size: 12mm-300mm Material: 20Cr-40Cr, ... , 20Mn2-40Mn2, 20CrNiMoA-40CrNiMoA, 38CrSi, 30CrMnSi, 20CrMnTi, 9CrSi, 9Mn2 Our "hot rolled alloy round bar" comes from famous steel&iron resouces ... in this product, feel free to contact us at any time.^_^