Steel Ball, Precision Ball, Small Metal Ball manufacturer / supplier in China, offering Low Price Precision Small Metal 316 Stainless Steel Ball 3.175mm, AISI 52100 1/2′′ 12.7mm Chrome Steel Ball Bearing G16, 3/4′′ 19.05mm G48 Precision AISI 52100 Bearing Steel Balls Chrome Steel Ball and so on.