Common metals and alloys of common metals; precoated metal sheet, coil and strip; metal building materials including precoated metal building materials; metal beams and structural members; metal in the form of sheet, coil, strip, plates, bars, rods, slabs and ingots; metal roof and wall cladding; ceiling battens; trusses; purlins; structural decking; metal formwork and reinforcing materials for buildings; metal building frames, framing sections and accessories; transportable buildings of metal; metal facias, metal channels, metal angles, brackets, clips and clamps, all of metal