... bearing, pulley, slide, handcraft, 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, ... .08 Max1.00 Max1.00 Max15.5~ 17.50.045 Max0.03 MaxFerritic stainless steel,better corrosion resistant ...