Borosilicate Glass Laboratory Tubing from Mexico
Unworked borosilicate glass tubing with a low linear coefficient of expansion (≤5 x 10⁻⁶/K from 0-300°C), used for fabricating laboratory equipment like test tubes and reaction vessels. Classified under HTS 7002.32.00.00 as unworked tubes of low-expansion glass, prior to any cutting, bending, or sealing.
Duty Rate — Mexico → United States
16%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify coefficient of expansion certification from manufacturer to confirm classification under 7002.32; test reports may be required by Customs
• Ship in protective packaging to prevent breakage; declare as unworked to avoid reclassification as finished articles