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%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
• Specify methane-rated explosion-proof design for mine safety approval
• Coordinate with MSHA for underground facility imports
• Pressure test certificates mandatory for customs release