Factory Price Miniature 12.7mm 6.35mm 4.7625mm Carbon Steel Ball for Surface Cleaning Guangzhou Decok Steel Ball Co., Ltd. Base Info Description Pre：G10-1000 Chrome Steel 6mm Loose Ball Bearing Bulk Next：1/8" 1/4" 11/32" 1/2" 1-1/16: " 1/4 Inch G100 C15 AISI1010 Unhardened Soft Carbon Steel Ball
