... form protection layer. Outstanding Features of stone breaking mill liner plate: BrandKleemann, Eagle, SBM, Extec, Komatsu, Pegson,Metso,Hazemag, ... firms ,metallurgy ,quarry firms Chemical Composition stone breaking mill liner plate Designation Chemical Composition (%) Mechanical propertiesof prouducts C Mn Si ... Cr Mo Ni P Ak/cm HB ZGMn20Cr2MoNIRe1.1~1.417~210.3~0.81. ...