ZHONGSHAN H.R.T PRECISION STEEL BALL CO., LTD was established in January 2008, it is branch company of Zhongshan Qianrun Precision Steel Ball Co., Ltd. H.R.T company is a leading manufacturer of precision steel balls in China, the product type include stainless steel ball, chrome steel ball, carbon steel ball, glass ball and plastic ball. Available size is from ä 0.5mm to ä50.8mm.The technology have advanced rapidly through several years' efforts, the grade precision finally reaches G5. It is a qualitative leap so that H.R.T company fill missing technology in domestic market. The products are widely used in bearing, lithium battery, micro motor, precision tool, automobile part, precision instrument, medical equipment and cosmetic industry. 70% products export to worldwide buyers, 30% for domestic industrial customers. Because of high quality and good service, we constantly get customers approval and the high praise. Here we would like to thank all of them for support, to accompany us grow together. Customer supreme and best service is our aim. H.r.t. Precision Steel Ball Co., Ltd is a reliable manufacturer and certificated with ISO9001:2008, ISO14000, TS16949. Meanwhile, we have applied technology patent for our own designed roller soring machine HRT-1201, which being 4 times efficiency compare with traditional machine, but 1/4 labor cost only. This new machine is designed by totally enclosed type, shapely and clean, good dustproof design & high-efficiency working performance.