Rhenium Thermionic Filament from China
Coiled rhenium filaments designed for thermionic emission in vacuum tubes and electron microscopes. These are manufactured articles of rhenium, not wire or raw metal, and fall under the 'Other' tariff item for rhenium.
Duty Rate — China → Canada
0%
Import Tips
• Classify these as finished articles, not as wire, to avoid heading 8112.99
• Provide filament specifications and rhenium purity documentation
• If the filaments are part of a larger device, consider Chapter 85 classification