1. Material：95%Alumina ceramics
2. Density：3.6-3.75g/cm3  
3. Machining accuracy：The outside diameter tolerance  ±0.5
4. Performance：wear-resisting and high hardness
5. Application：sharpenning bar

1. Material：95%Alumina ceramics
2. Density：3.6-3.75g/cm3  
3. Machining accuracy：±0.5
4. Performance：wear-resisting and high hardness
5. Application：grinding


1. Material：99%Alumina ceramics
2. Density：3.9-3.92g/cm3  
3. Machining accuracy：±0.5
4. Performance：wear-resisting and high hardness
5. Application：grinding