... Stainless Steel BallSpecification of Stainless Steel Ball:1. Material Available:AISI 304~AISI 316AISI 420~AISI 440C2. Size: 0.5mm-- ... GB/T-308-2002, GB/T1148-93Production process of Stainless Steel Ball:Drawing, Heading, Flashing, Heat-treatment, Grinding, Lapping1, ... Lapping2, Inspection, Packing.Packing information of Stainless Steel Ball:Oily packing in pouch packing, plastic/tin box ...