9.91mm 0.390inch AISI304 Stainless Steel Balls for Computer Hard Drive 3.968g Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：3.8mm 0.149inch AISI304 Stainless Steel Balls for Check Valve Balls 0.223G Next：China Cheap Wholesale Solid Stainless Steel Ball for Car Parts 9.96mm 10mm HRC20 4.032g 4.08g
