Common metals and their alloys; metal building materials; roof and wall cladding; guttering; guttering accessories; downpipes; fascias; metallic barriers for installation in gutters to prevent entry of debris; gutter protection devices; sheet metal; corrugated roofing; deck roofing; span roofing; purlins including z-section and c-section purlins; gutter scrolls; building panels of metal; structural metal sheets for roofs, walls and floors; roll-formed metal sheet or strip; roof ventilators; awnings; fences of metal; buildings of metal, including transportable buildings of metal, including sheds, pergolas, garages, carports, verandahs; prefabricated metal buildings; all the foregoing being goods of metal or goods primarily of metal