7308400009 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 - EQUIPMENT FOR SCAFFOLDING, SHUTTERING, PROPPING OR PIT-PROPPING, 7326903000 under HS Code OTHER ARTICLES OF IRON OR STEEL - OTHER :DRAIN COVERS, PLATES, AND FRAMES FOR SEWAGES, WATER OR SIMILAR SYSTEM, and 8311100009 under HS Code WIRE, RODS, TUBES, PLATES, ELECTRODES AND SIMILAR PRODUCTS, OF BASE METAL OR OF METAL CARBIDES, COATED OR CORED WITH FLUX MATERIAL, OF A KIND USED FOR SOLDERING, BRAZING, WELDING OR DEPOSITION OF METAL OR OF METAL CARBIDES; WIRE AND RODS, OF AGGLOMERATED BASE METAL POWDER, USED FOR METAL SPRAYING - COATED ELECTRODES OF BASE METAL, FOR ELECTRIC ARC - WELDING were the top imported HS Codes by FAO STAY ULUSLARARASY YAPI TAAHHYUT VE TIJARET ANONIM SHIRKETI in 2021.