Building materials and items of hardware for building made wholly or principally of metal; aluminium and aluminium alloys; ingots of non-precious metal; extruded and semi- fabricated metals and metal alloys, including extruded and semi-fabricated aluminium and aluminium alloys; goods made wholly or principally of non-precious metal not included in other classes; metallic building materials and components for residential, industrial, commercial and monumental buildings, including aluminium extrusions and products for use in the building industry, window frames and window fittings, doors, door frames and door fittings, insect screens, security screens and screen frames; curtain walls; folding doors, windows and screens predominantly of metal, including for interior and exterior use and parts and fittings for same
