Loose 3.175mm 4.763mm 7mm 9/32" 12mm 1/2" Carbon Steel Ball Changzhou Feige Steel Ball Co., Ltd. Base Info Description Pre：1 4 Inch 12.7mm 440 Stainless Bearing Steel Ball Next：316L 15mm 12.7mm 6.35mm 5/32" 3/16 Stainless Steel Ball
