High-Alumina Burner Block from Mexico
Precision-shaped burner port blocks with >60% Al2O3, fired for gas/oil burner installations in reheating furnaces. Refractory constructional goods resisting flame impingement. HTS 6902.20.50.10 for alumina burner refractories.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Detail port geometries in invoices to justify complex refractory classification
• Exclude from Chapter 94 if not furniture/lighting fittings per notes
• Sample testing for water absorption if mixed cast/jiggered production