Flame-Polished Fused Silica Mass from Germany
>- Fused silica in mass form with flame-polished surfaces to minimize defects, used in fiber optic preform production. The flame polishing is a pre-annealing process, so the glass remains unworked and classifiable as glass in the mass.
Duty Rate — Germany → Canada
0%
Import Tips
• >- Confirm that the flame polishing occurred before annealing; post-annealing polishing would make it worked glass
• Include technical specifications showing the silica content and purity
• Be prepared to explain the production steps to the CBSA officer if questioned