3/3.175/3.5/3.969/4/4.763/5/5.159/5.556mm AISI304/316/316L/420/440/440c Stainless Steel Ball/Suitable for Motorcycle, Bicycle, Auto Parts and Medical Equipment Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：60-65HRC AISI 52100 Chrome Bearing Ball 20mm 10mm Stainless Steel Ball for Bearings Balls Next：15.8mm AISI304 Stainless Steel Ball Suitable for Auto Parts, Bicycle Parts, Motorcycle Parts
