691200000000 under HS Code Others, 730830000000 under HS Code STRUCTURES (EXCLUDING PREFABRICATED BUILDINGS OF HEADING 9406) AND PARTS OF STRUCTURES (FOR EXAMPLE, BRIDGES AND BRIDGE-SECTIONS, LOCK-GATES, TOWERS, LATTICE MASTS, ROOFS, ROOFING FRAME-WORKS, 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 - DOORS, WINDOWS AND THEIR FRAMES AND THRESHOLDS FOR DOORS, and 680919000000 under HS Code ARTICLES OF PLASTER OR OF COMPOSITIONS BASED ON PLASTER - BOARDS, SHEETS, PANELS, TILES AND SIMILAR ARTICLES, NOT ORNAMENTED : OTHER were the top imported HS Codes by HUADING ENGINEERING COMPANY LIMITED in 2023.