Delay Electric Detonator from Canada
Electric detonators with built-in pyrotechnic delays for sequential blasting in tunneling projects, allowing precise millisecond timing. It is covered by HTS 3603.60.00.00 as an electric detonator designed for industrial explosive operations. Delays ensure rock fragmentation without flyrock hazards.
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
• MSHA approval required for underground mining use; store below 25°C to prevent degradation; declare exact delay durations on commercial invoice