山东十一运夺金

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  • 山东十一运夺金 China International Construction Machinery

    China International Construction Machinery, Building Materials Machinery, Mining Machinery, Engineering Vehicles and Equipment Expo

    2019-04-26 294

  • What kind of material is

    High hardness, excellent wear resistance, not easy to cause seizure, good casting performance and cutting performance of composite bushing, good corrosion resistance in atmospheric and fresh water。

    2019-04-26 400

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