Czochralski Crystal Seed Chuck from Canada
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 — Canada → United States
14.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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