... are one of the leading manufacturer in steel ball industry in China. We are THE PRESIDENT OF STEEL ... of wire to high-level precision steel ball.MAIN PRODUCTS:1. Stainless steel ball, with material AISI304, 316, 420C, 440C2 ... several industries, such as hardware, sliders, ball bearing lead screw, wheels, toys, bicycles, bearings, trust bearings pulleys, chemical industries, etc.DETAIL SPECIFICATION ...