... . Type of the product: plain cast iron roll, centrifugal roll, normal steel casting roll, semi-steel roll, normal steel forging roll, straightening ... .Steel grade: CrMo ductile cast iron indefinite chilled, high NiCr centrifugal casting, ZU70Mn2, semi-steel, 60CrMnMo,9Cr2Mo, etc. The rolls manufactured by ...