Engineering Hollow Ceramic Bricks Class SX from Canada
Class SX engineering hollow ceramic bricks for severe weather exposure, high-fired clay construction units. Under HTS 6904.10.00.40 as other hollow bricks for demanding structural applications.
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
• Include weathering resistance test results (ASTM C902) for engineering grade verification
• Ensure no surface treatments pushing into glazed tile classifications
• Document firing uniformity to meet Chapter 69 inorganic nonmetallic materials definition