Tunneling Blast Igniter from Canada
Heavy-duty igniter for tunnel boring machine (TBM) face blasting in underground construction. Engineered for high-pressure environments, 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
• Specify methane-rated explosion-proof design for mine safety approval
• Coordinate with MSHA for underground facility imports
• Pressure test certificates mandatory for customs release