Solid 201 304 316 420 440 Stainless Steel Ball Precision Bearing Ball Guangzhou Decok Steel Ball Co., Ltd. Base Info Description Pre：High Quality 7.938mm 10mm 12mm 16mm 17mm Stainless Steel Solid Ball Next：Suj-2 AISI52100 100cr6 Gcr15 Precision Steel Ball Chrome Steel Ball of Bearing
