Stainless Steel Ball 1.Low price & High Hardness 2. OEM service accepted 3. Low noise &wear resistance ... shelf, luggage, hardware, grinding media,Valve, aerosol and finger pump, bearings, and electronic components6. Standard: GB/T-308-2002, GB/T1148 ... -93Production process of Stainless Steel Ball:Drawing, Heading, Flashing, Heat-treatment, Grinding, Lapping1, Lapping2, Inspection, ...