Zhongshan H.R.T. Precision Steel Ball Co.,LTD is located in Zhongshan City, Guangdong Province, China. Our Main products contain: 1) Ball Bearing (AISI52100 and austenitic stainless steel 316L, 420,420 C, 440440C, etc.); 2) Stainless Steel Ball (300 series and 420,440,440C); 3) carbon steel balls; 4) glass ball. Our Company adhering to the "customer first, forge ahead" providing our highest quality and service. Your enquiry is pretty welcome !