Shock Tube Safety Fuse from Germany
A non-explosive plastic tube filled with reactive powder that transmits a low-energy shock wave to initiate detonators remotely. Though technically a signal tube, it's used interchangeably with safety fuses in mining under HTS 3603.10.00.00. Provides minimum run-up distance with high reliability.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Differentiate from detonating cord via low-energy signal declaration to Customs
• Require mine site end-user letters for commercial blasting verification
• Color-coded tubes need matching documentation to prevent mix-ups during inspection