Tunnel Boring Electric Detonator from Japan
Short-period delay electric detonators for tunnel boring machine-assisted blasting in infrastructure projects. Classified HTS 3603.60.00.00 as electric detonators for precise underground excavation. Reduces overbreak and vibration.
Duty Rate — Japan → United States
10.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Vibration monitoring data required; FIFO inventory for shelf life; train on tunnel ventilation protocols