12.0mm Soft Carbon Steel Ball AISI1010-AISI1015 Stainless Carbon Chrome Steel Balls for Bearing 7.042g Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：11.5mm AISI1010 1015 G1000 Low Carbon Soft Steel Ball, HRC 50-65 Hard Carbon Steel Ball 6.203G Next：12.7mm 1/2" Soft Carbon Steel Ball AISI1010-AISI1015 Qualified Carbon Bearing Balls Steel Balls 8.3G
