Yusion 4.7625mm-150mm Chrome Steel Ball for Precision Ball Bearings LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：4.7625mm-150mm Bearing Ball / AISI52100 Steel Ball (HRC60-HRC66) Next：Yusion 3/16"-6" AISI52100 Steel Ball / Suj-2 Steel Ball
