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        Application

        Bicycle

        Bicycle

        Bicycle ceramic wheel bearing product features;Seal: 2 rubber seals;Accuracy level: ABEC-5 ;Ceramic ball grade: G5 (standard ceramic ball roundness grade range is from 2000 to 3, the smaller the number, the higher the accuracy);Bearing ring material: chrome steel 52100;Ball material: silicon nitride ceramic ball

        2.自行车.jpg

        真金棋牌app