19 Fire protection materials, not of metal, namely, fire-resistant boards and panels for construction, fireproof cement coatings, and fireproof tiles; refractory construction materials, not of metal; fire retardant glass for building; fire doors, not of metal; building panels incorporating insulation, not of metal; fire resistant cable channel systems in the nature of cable trays used in building construction and air conditioning ducts, not of metal; fire resistant collars for pipes, not of metal; fireproof panels for construction, not of metal, all aforementioned goods excluding any ceramic components and composite materials made from them for wear protection, corrosion protection and ballistic protection applications; structural parts for prefabricated building, not of metal; fibre-cement, calcium-silicate, vermiculite, gypsum, and polymer building boards, not of metal; plasterboards; plastering preparations; wall linings, not of metal, for building; cladding materials, not of metal, for building; cladding, not of metal, for façades, roofs, walls and ceilings; roofing materials and their structural parts and fittings, not of metal, namely, boards, floor panels, and joists; roofing tiles, not of metal; slates, not of metal for building; roofing and cladding materials for building in the nature of corrugated sheets, not of metal; roofing panels, not of metal; gutter pipes, down spouts and connectors therefor, not of metal; roofing flashing materials, not of metal; roof abutments, not of metal; roof tiles sold as components of roofing, not of metal; roofing underlayments, not of metal; partitions for building, not of metal; cement, mortar for building