| 4418.90.46 | 50 | Prefabricated partitions and panels for buildings | X | | | |
| 6810.91.00 | 00 | Prefabricated structural components for builidng or civil engineering | X | Free | | 30% |
| 7308 | | Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: | | | | |
| 7610 | | Aluminum structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge-sections, towers, lattice masts, roofs, roofingframeworks, doors and windows and their frames and thresholds for doors, balustrades, pillars and columns); aluminum plates, rods, profiles, tubes and the like, prepared for use in structures: | | | | |
| 9406.00 | | Prefabricated buildings: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 534
