Borosilicate Glass Tubes for Fiber Optic Preforms from Japan
Unworked low-expansion glass tubes used as overcladding in fiber optic preform manufacturing for telecommunications cables. These borosilicate tubes have a linear coefficient of expansion not exceeding 5 x 10⁻⁶/K within 0°C to 300°C. They are imported in their raw tube form without any working or processing.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the tubes are unworked and not cut to length, as cutting may change classification
• Provide technical data sheets showing the expansion coefficient
• If the tubes are for telecommunications, check if they qualify for any end-use provisions