Chrome Steel Bearing Ball Stainless Steel Round Ball Manufacturer Chinese Metal Ball 6.350mm 7.937mm 8.731mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre:4.48mm Carbon Steel Ball AISI1010-1015 Metal Ball Nickel Plated Carbon Steel Ball 0.353G Next:Large Supply of Various Specifications of Environmental Protection Smooth Bright Carbon Steel Ball Can Be Electroplated Solid