High Quality Custom Cheap Carbon Steel Balls Solid Metal Balls 6.65mm 5/16inch 11/32 Inch Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：7.1mm Soft Carbon Steel Bearing Ball Deep Groove Bearing Size Available AISI1010-AISI1015 Next：Soft Carbon Steel Ball AISI1010-AISI1015 Polished Steel Ball 9.525mm for Grinding Low Carbon Steel Ball Solid Metal Sphere
