Clay Refractory Tube from Mexico
High-temperature clay tubes for kiln furniture and thermocouple sheaths. Fired refractory clay construction places it under HTS 6903.90.00.10 as listed 'tubes' other than siliceous types.
Duty Rate — Mexico → United States
10%
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
• Include kiln firing temperature certification (>800°C) to meet Chapter 69 firing requirement
• Specify inner/outer dimensions and thermal rating on invoices
• Watch for exclusion if used as electrical insulators (8546/8547)