... , bearing, pulley, slide, handcraft, shelf, luggage, hardware, grinding mediaStandardGB/T-308-2002, GB/T1148-93Matched StandardDIN, JIS, ASMECertificationISOPackingOily packing in pouch packing ... province, ChinaDeliveryWithin 30 days or confirmed while placing order ASME standard Zinc Plated Steel ball made by professional manufacturer