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1.Material: Wheel: 40Mn2 axis of the body: 50 Mn Inside and outside the cover, shaft seat: QT450-10 Iron sets,
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1) Material: of MnB 35 or 40Mn22) heat treatment process: Quenched :30-36HRC + tread IF quenching :48-54HRC3) Processing: Milling side - drill screw holes - red square - rough
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Crawler crane sprocket 7065
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