Tungsten Carbide Ceramic Grinding Discs from China
Fired tungsten carbide ceramic grinding discs for sample preparation in geological labs. These discs meet the 9+ Mohs hardness requirement, qualifying as technical ceramic ware under tariff item 6909.12.90. They are suitable for rock and mineral pulverization due to their durability.
Duty Rate — China → Canada
4.5%
Import Tips
• Ensure the discs are fired ceramic, not metal-bonded, to qualify under Chapter 69
• Provide hardness test reports for customs
• Classify as laboratory equipment for accurate duty assessment