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:

7308.10.00.00Bridges and bridge sections 7308.20.00Towers and lattice masts 7308.20.00.30Tubular, whether or not tapered, and sectional components thereof 7308.20.00.35Tubular wind turbine towers, whether or not tapered, and sectional components thereof 7308.20.00.90Other 7308.30Doors, windows and their frames and thresholds for doors: 7308.30.10.00Of stainless steel 7308.30.50Other 7308.30.50.15Windows and their frames 7308.30.50.25Thresholds for doors 7308.30.50.50Other 7308.40.00.00Equipment for scaffolding, shuttering, propping or pit- propping 7308.90Other: 7308.90.30.00Not in part of alloy steel 7308.90.60.00Other 7308.90.70.00Steel grating 7308.90.95Other 7308.90.95.30Sheet-metal roofing, siding, flooring and roof drainage equipment 7308.90.95.60Architectural and ornamental work 7308.90.95.90Other