Aluminium structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridgesections, 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 door, of aluminium (excl. door furniture)
Structures and parts of structures, of aluminium, n.e.s., and plates, rods, profiles, tubes and the like, prepared for use in structures, of aluminium, n.e.s. (excl. prefabricated buildings of heading 9406, doors and windows and their frames and thresholds for doors)