Crystal Puller Seed Chuck Holder from Japan
Rotatable holder mechanism for seed crystals dipped into molten silicon during Czochralski boule pulling. Classified HTS 8431.49.10.80 as part of heading 8426 crystal grower equipment.
Duty Rate — Japan → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Document rotation speed and temperature ratings; specify seed diameter range; provide alignment tolerance specs