Quarry Delay Igniter from Canada
Multi-delay igniter series for patterned blasting in aggregate quarries, allowing precise rock fragmentation control. Categorized under HTS 3603.50.00.00.
Duty Rate — Canada → United States
10.2%
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
• Sequence delay codes (e.g
• 25ms, 50ms) must match invoice descriptions exactly
• Bond requirements higher for aggregate industry imports; pre-calculate
• Train staff on misfire procedures in safety declarations