12.7mm Low Carbon Steel Ball AISI1010-AISI1015 Factory Price 45mm Baoding Steel Stress Ball Carbon Steel Health Ball 7.042g Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：3mm and 4.76mm AISI1010 G100 Carbon Steel Ball for Slide Making Next：12mm Low Carbon Steel Ball AISI1010-AISI1015 Carbon Iron Steel Balls Grinding Media Balls Bearing Steel Ball 12.7mm
