Metallic articles for building purposes; metallic building components; metallic building materials; building materials made wholly or principally of metal; metallic forms; anodised and polished aluminium; coated aluminium; aluminium profiles; aluminium strips; aluminium supports for panels; building panels of aluminium; extruded aluminium profiles; aluminium frames; common metals; decorative and/or protective coated metallic materials; extruded and semi-fabricated metals and metal alloys; aluminium and aluminium alloys; aluminium building products and extrusions; cladding board of metal; cladding of metal for buildings; cladding of metal for construction and building; cladding of metal for facades; cladding of metal for walls; cladding panels of metal for wall construction; coated metallic articles for building purposes; parts, fittings and accessories for the aforementioned goods