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HBW555XCH6 High Abrasive Step Liners for Cement Mill Dia.3 x 10m As Cast EB5037 Material Grade: 1.Martensitic Cr Mo AlloySteel(ZG50Cr5Mo,ZG60Cr6Mo,Cr12Mo): Hardness:≥HRC48, Impact value:≥25J. 2.High ...