1,HiCr iron work rolls, 2,HiNiCr iron work roll, 3,Cast iron edger rolls 4,Medium & Heavy plate mill work roll. Classification of productsHardness (HS ... )Strength of necks(Mpa)Main applicationAlloy nodular iron roll40-55≥300Blooming and roughing ... you requesr such as the materical and technology request. Cast iron roll