Helium-Neon Laser Plasma Tube from Canada
HeNe laser plasma tubes generate visible laser light through gas discharge excitation of helium-neon mixture. Used in alignment and metrology, they qualify as gas electron tubes under HTS 8540.89.0020.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Mirror coating specs and gas pressure stability docs required
• Lifetime rating (hours) helps establish tube vs. complete laser status
• Optical bench mounting features affect parts classification