... ball5. Precision casting, including auto parts, machine parts, hardware handles, etc.CHARACTER OF PRODUCTS:1.The Grade of ... HRC)HRC58-65ApplicationBicycle, bearing, pulley, slide, handcraft, shelf, luggage, hardware, grinding mediaStandardGB/T-308-2002, GB/T1148-93Matched StandardDIN, JIS ... 30 days or confirmed while placing order ASME standard Zinc Plated Steel ball made by professional manufacturer