Float Zone Furnace Quartz Crucible Holder from Mexico
Although float zone is crucible-less, this precision quartz holder supports seed/feed rods in RF furnaces (8426.11) for stable zone melting. Part for semiconductor crystal growth equipment under 8431.49.1010.
Duty Rate — Mexico → 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 of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Provide thermal expansion coefficient matching quartz tube specs
• Classify as machinery part, not lab ware (7017)
• Certify high-purity quartz for silicon processing