6 Common metals and their alloys; precoated metal sheet, coil and strip all being sheet metal; prepainted metal sheet, coil and strip all being sheet metal; metal roofing, wall cladding, ceiling battens, roof trusses, purlins, structural decking, metal formwork and reinforcing materials for buildings, sheet metal being metal mesh, sheet metal being expanded metals, metal rainwater products being industrial water tanks, all in the nature of metal building materials; metal building material, namely, fascias, guttering, ridge capping, downpipe and industrial rainwater tanks of metal; metal building frames for houses and commercial buildings; transportable buildings of metal; metal fencing, namely, posts and panels; pipes and tubes of metal; metal facias, metal mesh, plastic coated wire, metal channels, metal angle irons, brackets, clips and clamps, all in the nature of metal building materials