Liangshan Keda Steel Ball & Bearing Co., Ltd specialized in the production of carbon steel ball and chrome steel ball products, 1.5875mm - 38.1mm, G10 - G1000, 3.175mm/3.5mm/3.969mm/4mm/4.763mm/5mm/5.953mm, if you are interested in our steel ball products, please feel free to contact me, info@ LSKD.com.cn, +8618616693199