Cladding of metal incorporating windows; glazed windows (metal frame); metal fitted windows; metal windows; metallic windows; ready made windows made of metal; wall windows of metal; windows of metal; armoured doors of metal; assemblies of metal doors adapted to fold; assemblies of metal doors adapted to slide; doors of metal for buildings; external doors of metal; metal doors; metal framed patio doors; metallic doors; patio doors of metal; security doors of metal for buildings; tiltable metal doors for buildings; articles of metal for use in construction; cladding of metal for construction and building; cladding panels of metal for wall construction; cold rolled sections of metal for use in the construction industry; coloured metal sheeting for building construction; construction elements of common metal; construction elements of metal; construction materials of metal; construction sheets of metal; facade construction components of metal; forged metalwork for use in construction; frames of metal for construction work; glazed panels (metal frame) for construction; glazing panels (metallic framed) for use in construction; materials of metal for railway construction; metal arch frames for use in construction; metal articles for use in construction; metal articles for use in construction; metal construction materials; metal materials for construction; portable constructions of metal; portable metallic constructions; products made of metal for use in building and construction; riveted metal constructions; structural sections of metal for construction purposes; supports of metal for use in the construction of formwork