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%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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