Building materials not of metal, namely, materials for ceilings and floors; building panels not of metal, namely, floor panels, ceiling panels; facings not of metal for building; frameworks not of metal for building; reinforcing materials not of metals for building; surfacing not of metal for building, namely, non-metal roofing, non-metal flooring; tiles not of metal for building; non-metal formworks for foundations; non-metal formworks for ventilated foundations; plastic formwork for columns...