Wholesale Supply 53.795mm Hard Chrome/Carbon Steel Ball for Skates, Pens, Pumps, Castors, Measurement Instruments, Valves 635.324G Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Ball Bearing Accessories Chrome Steel and Carbon Steel Material 49.212mm Size Steel Ball 468g Next：63mm Hollow Steel Ball/AISI316 Large Hollow Float Stainless Steel Balls
