Interferometer Reference Mirror from China
A super-polished flat mirror mounted in a vibration-isolated holder for use as a reference surface in laser interferometers for precision metrology. It is a mounted optical element serving as a fitting for measuring instruments, classified under tariff item 9002.90.00.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the mirror is declared separately from the interferometer itself, as it is a part or fitting
• Provide the mirror's specifications (flatness, coating) to justify classification under 9002.90.00
• If the mirror is sold with the interferometer as a set, the entire set may be classified under heading 90.31