8.731mm Solid Bearing Ball Forged Carbon Steel Ball Grinding Chrome Steel Ball for Bearing 1.369g Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：6.9mm Low Carbon Steel Ball AISI1010-AISI1015 Ball Bearings Small Miniature Solid Steel Balls Next：7.0mm Low Carbon Steel Ball AISI1010-AISI1015 Steel Ball Supplierchrome / Carbon / Stainless Steel Ball Manufacturer 1.399g
