DocumentCopper balls provide excellent resistance to corrosion by water, and they are substantially lower in cost than other corrosion-resisting balls.Copper balls also have corrosion resistance, and solid copper round precision balls have non-reactive properties.Copper balls are frequently used in many types of valve applications requiring small-size balls.Especially useful for casters, drawer slides, door locks and many other applications.

200Pcs 3.5mm Precision Solid Copper Bearing Ball for Bearing Valves Decoration
- Copper balls provide excellent resistance to corrosion by water, and they are substantially lower in cost than other corrosion-resisting balls.
- Copper balls also have corrosion resistance, and solid copper round precision balls have non-reactive properties.
- Copper balls are frequently used in many types of valve applications requiring small-size balls.
- Especially useful for casters, drawer slides, door locks and many other applications.