Color: Silver Diameter: 19.05/19.5/19.844/20/20.5/20.638/21/21.431/22mm Pack Quantity: 1/5/10Pcs Features: high precision, high hardness, smooth surface, good roundness, wear resistance, not easy to rust High precision 440C stainless steel ball, available in multiple sizes, with a hardness of 58-60, strong wear and corrosion resistance toughness, suitable for scenarios such as bearings, aviation, hydraulic, precision instruments, etc, Manufacturer: SBJKLYRN
Color: Silver Diameter: 19.05/19.5/19.844/20/20.5/20.638/21/21.431/22mm Pack Quantity: 1/5/10Pcs Features: high precision, high hardness, smooth surface, good roundness, wear resistance, not easy to rust High precision 440C stainless steel ball, available in multiple sizes, with a hardness of 58-60, strong wear and corrosion resistance toughness, suitable for scenarios such as bearings, aviation, hydraulic, precision instruments, etc, Manufacturer: SBJKLYRN
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