12mm Low Carbon Steel Ball AISI1010-AISI1015 Carbon Iron Steel Balls Grinding Media Balls Bearing Steel Ball 12.7mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：12.7mm Low Carbon Steel Ball AISI1010-AISI1015 Factory Price 45mm Baoding Steel Stress Ball Carbon Steel Health Ball 7.042g Next：12.7mm Low Carbon Steel Ball AISI1010-AISI1015 Mild Steel Balls Carbon Steel for Greasers Skates Caddies 7.22g
