China Stainless Steel Ball for Surgical, Bearing AISI304 0.003G Aluminum Steel Round Beads 8.731mm 9.525mm 12.7mm, Find details about China Stainless Steel Ball, Stainless Steel Hollow Ball from Stainless Steel Ball for Surgical, Bearing AISI304 0.003G Aluminum Steel Round Beads 8.731mm 9.525mm 12.7mm