... ball5. Precision casting, including auto parts, machine parts, hardware handles, etc.CHARACTER OF PRODUCTS:1.The Grade of ... from us are widely used in several industries, such as hardware, sliders, ball bearing lead screw, wheels, toys, ... HRC)HRC58-65ApplicationBicycle, bearing, pulley, slide, handcraft, shelf, luggage, hardware, grinding mediaStandardGB/T-308-2002, GB/T1148-93Matched StandardDIN, JIS ...