... primary processing of wire to high-level precision steel ball.MAIN PRODUCTS:1. Stainless steel ball, with material AISI304, 316, 420C ... 1008-1086.3. Chrome steel ball,with material: AISI521004. Flying saucer steel ball5. Precision casting, including auto parts, ... used in several industries, such as hardware, sliders, ball bearing lead screw, wheels, toys, bicycles, bearings, trust bearings pulleys, ...