Walnut Shell Flour Abrasive Grade from Canada
Note: While typically from nuts, certain wood flours mimic this; fine walnut-like hardwood flour for gentle abrasives. HTS 4405.00.00.00 for precision polishing powders. 400 grit equivalent particle size.
Duty Rate — Canada → United States
13.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Hardness (Mohs scale) certification for abrasive applications
• Angular particle analysis distinguishes from spherical blasting media
• Contaminant levels (<50 ppm metals) for precision polishing