... Material:35SiMn,35SiMnMo Warranty:one year Technique:Forging Top Roller for SCX900-2 Crane Delivery & Package:Package: ... Pile Drive Undercarriage parts includes:Track shoe, Pin, Bottom roller, Top roller, Sprocket, IdlerSuitable for Brands: HITACHI, SUMITOMO, KOBELCO ... , P&H, FUWA, SANY, XCMG, LINK BELT, HITACHI-SUMITOMO, DEMAG, ...