4.7625mm-150mm Bearing Ball / AISI52100 Steel Ball (HRC60-HRC66) LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：Yusion Bearing Ball / AISI52100 Steel Ball (G10-G600) Next：Yusion 4.7625mm-150mm Chrome Steel Ball for Precision Ball Bearings
