Solid Carbon Steel Ball Factory Provide 6.350mm Stainless Steel Ball Bearing with Thread 8.731mm 12.7mm 19.050mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Soft Low Carbon Steel Ball Bearing for Bicycle 1.586g Steel Ball Manufacturer Supplier 7.937mm AISI 1010 1015 Next：6.8mm Low Carbon Steel Ball Hot Selling Carbon Steel Balls for Sale with Ce Certificate 1.282g
