Fused Quartz Diffusion Tube from China
A high-purity fused quartz tube for insertion into diffusion furnaces used in semiconductor wafer production. It withstands extreme temperatures and corrosive gases during the doping process. This industrial glass article is not covered by other headings and falls under tariff item 7020.00.90 as 'Other' articles of glass.
Duty Rate — China → Canada
6.5%
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
Import Tips
• Classify the tube as an industrial glass article, not as laboratory glassware, to avoid misclassification under heading 7017
• Keep documentation of the fused quartz composition (silica content) for customs verification
• Consider duty deferral programs if the tube is used in manufacturing