... HiNiCr iron work roll, 3,Cast iron edger rolls 4,Medium & Heavy plate mill work roll. Classification of productsHardness ... -75≥350Backup rolls for medium and heavy plate mills70-85≥350Used in the late finishing ... casting rolls, forged steel rolls, alloy forged steel roll.Mainly used in: steel finishing mill, rough ... rolling mill work rolls, back-up roll, stand roll,and roll table, roller ring.If you are ...