7610100000 under HS Code ALUMINIUM STRUCTURES (EXCLUDING PREFABRICATED BUILDINGS OF HEADING 9406) AND PARTS OF STRUCTURES (FOR EXAMPLE, BRIDGES AND BRIDGE-SECTIONS, TOWERS, LATTICE MASTS, ROOFS, ROOFING FRAMEWORKS, DOORS AND WINDOWS AND THEIR FRAMES AND THRESHOLDS FOR DOORS, BALUSTRADES, PILLARS AND COLUMNS); ALUMINIUM PLATES, RODS, PROFILES, TUBES AND THE LIKE, PREPARED FOR USE IN STRUCTURES - DOORS, WINDOWS AND THEIR FRAMES AND THRESHOLDS FOR DOORS, 4418109000 under HS Code Others, and 4418201000 under HS Code BUILDERS` JOINERY AND CARPENTRY OF WOOD, INCLUDING CELLULAR WOOD PANELS, ASSEMBLED FLOORING PANELS, SHINGLES AND SHAKES - DOORS AND THEIR FRAMES AND THRESHOLDS: FLUSH DOORS were the top imported HS Codes by WINDOWS OF THE WORLD LLC in 2021.