Tourmaline Abrasive Powder from Canada
Natural tourmaline dust for specialty polishing of hardened steels and ceramics. HTS 7105.90.00.00 covers other natural semi-precious stone powders.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Piezoelectric properties require special ESD handling declarations
• Brazilian/Chinese sources have different purity profiles
• Water-soluble boron content testing recommended