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  Zheng Yong high strength silicon nitride ceramic ball with high strength, high temperature resistance, non-magnetic, wear resistance, corrosion resistance and other characteristics, in ceramic bearing and ceramic mixed bearing industry has a wide range of applications. In the application of ceramic bearing, Zheng Yong high strength silicon nitride ceramic ball has high strength, high wear resistance, high temperature resistance, corrosion resistance, can be used in harsh environment for a long time; Low specific gravity can realize high speed running of the bearing; It is self-lubricated and can be used in high pollution environment without lubricating medium.