ZHONGSHAN QIANRUN PRECISION STEEL BALL CO.,LTD. is the unique manufacture in china, which posses- ses the most advanced production line. The company facilities, from the Heat-Treament Furnace, High Speed Heading machine and machine for flashing, grinding, lap- ping and cleaning, are all imported from German compa-nies ????????S, Hilgland and Schwarz. Our company ,which granted ISO-9002,TS-16949 certificate, has the ability to produce precision steel ball up to G5,size is ranging from 0.5mm to 250mm and Processing material for bearing steel balls, stainless steel, carbon steel, glass, plastic, copper. Our annual production capacity is up to 2,000 tons. Our customers not only come from the domestic bearing companies, but also from the world-famous one. Simultaneously we also sell many kinds of different mat- erial precision steel ball wrap - Leader Pin & Bushing, the independence Leader Bushing.