si3n4 ball bearing balls
1. High corrosion resistance, which means they can be also used in strong acid,strong alkali and seawater.
2. High temperature resistance. Si3N4 ceramic balls remain the same strength and hardness even in 1100 ℃.
3. Electrical insulation, non-magnetic, They can also be used in magnetic domain.
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si3n4 ball bearing balls - China si3n4 ball bearing ...