Lab Muffle Furnace Refractory Door from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Thermal shock resistance certification essential
• Door alignment tolerances specified
• Fiber density and classification data required