6.4/6.5/6.747/7.144/7.938mm Carbon Steel Ball AISI1010-AISI1015/Suitable for Motorcycle, Bicycle, Auto Parts Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：1 1/2 Inch 38.1mm High Precision Carbon Steel Ball Next：2.43mm Low Carbon Steel Ball AISI1010-AISI1015 Abrasives Carbon Steel Ball/Steel Shot Ball for Steel Structure 0.058g
