Silicon Ingot Mold Grinding Fixture from Mexico
Fixture part for holding ingot molds during precision grinding in semiconductor metallurgy preparation. Ensures diameter accuracy for crystal boules used in wafer slicing. As a part of casting machine tooling, it's under 8454.90.00.
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
• Include photos/drawings of fixture-mold interface to prove specificity to 8454 equipment
• Declare tolerance specs (e.g
• ±0.1mm) to support foundry precision claim
• Avoid 'general tooling' description to prevent 8466 classification