Crystal Boule Grinder Flatting Wheel from China
A specialized grinding wheel for creating orientation flats on silicon boules to indicate crystal plane and doping type, used in crystal grinders of heading 84.72. It ensures wafers sliced from the boule have correct conductivity markings. This part is classified under tariff item 8473.40.00 as a part of heading 84.72 machines.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the flatting wheel is declared as a part of a crystal grinder of heading 84.72, not as a general abrasive tool
• If the wheel is made of diamond or other abrasive materials, it may be classified under heading 68.04 instead
• Document the specific grinder model it is designed for to support the classification