China 9.91mm AISI316L Stainless Steel Ball Manufacturer 201 304 316 11mm 2mm 10mm Stainless Steel Ball, Find details about China Stainless Steel Ball, AISI 420c 440c Stainless Steel Ball G10-G1000 from 9.91mm AISI316L Stainless Steel Ball Manufacturer 201 304 316 11mm 2mm 10mm Stainless Steel Ball