Fused Silica Thermocouple Protection Tubes from Canada
Unworked protective tubes for thermocouples in high-temperature environments like glass melting tanks. Made from pure fused quartz to withstand molten glass contact without devitrification. Classified in 7002.31.00.00 as unworked tubes of fused silica.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify closed-end vs open-end configurations in invoices to match statistical reporting
• Thermal shock resistance data helps prove fused quartz composition vs crystalline forms