Bronze Wear Plate for Tunnel Boring Machine from Mexico
A bronze wear plate used in tunnel boring machines (heading 8430) to reduce friction and protect structural components during tunneling. Its copper alloy construction offers superior corrosion resistance in harsh underground environments. Falls under HTS 8431.49.90.32 as a copper alloy part for tunneling machinery.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) of U.S. note 16 to this subchapter
9903.03.060%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; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Include engineering drawings showing compatibility only with 8430 machinery
• Obtain supplier declarations confirming >50% copper content for alloy classification
• Avoid common pitfall of mislabeling as general machinery parts; specify tunneling use