U.S. import duty HS code關於「US import duty rate calculator」標籤，搜尋引擎有相關的訊息討論：
US Import Duty & Custom Duty Calculator - Freightoswww.freightos.com › Resources › Freight GuidesCalculate Import Duties & Taxes to United States - Easyshipwww.easyship.com › duties-and-taxes-calculator › usaCustoms Duty Information | U.S. Customs and Border Protectionw