TourAxiom/US Federal/Statutes/Hts/§ 7218.91.00HTS 7218.91.00∀4 rulesOfficial sourcegraph ↗build calculator ↗citeOf rectangular (other than square) cross-section Rates of duty (1-General): Free Rates of duty (2): 29%← HTS 7218.10.00.00HTS 7218.91.00.15 →