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track roller
1.Material: Wheel: 40Mn2 axis of the body: 50 Mn Inside and outside the cover, shaft seat: QT450-10 Iron sets, bracket: QT450-10 Bush: CuPb10Sn102. Heat Treatment: Wheel body: the rolling surface IF quenching :48-54HRC, Axis: adjust qualitative :25-30HRC + outer surface of the intermediate frequency quenching :50-56HRC3. Wheel half the CO2 gas shielded welding.4. Warranty: 1 year.5. Wooden pallet packaging.
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