Stainless Steel Bearing Ball Carbon Steel Ball Chrome Steel Ball 8.731mm 9.525mm 12.700mm 19.050mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：6.35mm Low Carbon Steel Ball AISI1010-AISI1015 Carbon Steel Ball for Bicycle 1/4" Cycle Steel Bal Next：7.35mm Soft Carbon Steel Ball HRC55-65 Polished Dia 9.525mm 12.700mm 19.050mm Carbon Steel Bearing Ball
