Lab Muffle Furnace Refractory Door from Mexico
Fiber-insulated refractory door assembly for laboratory muffle furnaces used in ash content determination and small-scale calcining. Part of electric laboratory furnaces under HTS 8514.90.8000 for heat treatment. Features interlocking design for heat retention.
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
• Thermal shock resistance certification essential
• Door alignment tolerances specified
• Fiber density and classification data required