Czochralski Crystal Seed Chuck from China
Rotating seed chuck for Czochralski crystal pullers under heading 8462. HTS 8466.94.85.85 as work holder for boule growers. Temperature-controlled interface prevents crystal defects during growth initiation.
Duty Rate — China → United States
39.7%
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
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Include thermal gradient specifications (1500°C capable) proving puller-specific design
• Declare silicon/gallium arsenide compatibility per statistical notes
• Avoid classifying heater elements separately which go under heating elements heading