19 Trellises, not of metal; chimney cowls, not of metal; macadam; binding agents for making briquettes, namely, facing mortar and bonding mortar for buildings; bitumen building paper; ducts, not of metal, for ventilating and air-conditioning installations; stair-treads, not of metal; chimney pots, not of metal; windows, not of metal; door frames, not of metal; brackets, not of metal, for building; building materials, not of metal, namely, floor boards; drain pipes, not of metal; paint spraying booths, not of metal; doors, not of metal; portable skating rinks, not of metal; swimming pools, not of metal; building stone; insect screens, not of metal; tiles, not of metal, for building; chimney shafts, not of metal; furrings of wood; bitumen paper for building; casement windows, not of metal; portable buildings, not of metal; platforms, prefabricated, not of metal used to create travel and access surfaces; roofing, not of metal, incorporating photovoltaic cells; cement for furnaces; bituminous coatings for roofing; window sills, not of metal; wood paneling; wood, semi-worked; mortar for building; asbestos mortar; roof gutters, not of metal; catch basins for attachment to sewer pipe drains to trap debris, not of metal or plastic; scaffolding, not of metal; wall claddings, not of metal, for building; slabs, not of metal, for building; bituminous waterproofing sheets for building; sandstone for building; beams, not of metal; laths, not of metal; wainscotting, not of metal; door panels, not of metal; buildings, transportable, not of metal; chimneys, not of metal; tar; ceilings, not of metal; palisading, not of metal; linings, not of metal, for building; insulating glass for building; architectural moldings, not of metal, for building; enamelled glass, for building; cement; framework, not of metal, for building; staircases, not of metal; bitumen; slag, namely, stone for use as building material; plate glass windows for building; tile floorings, not of metal; outdoor blinds, not of metal and not of textile; geotextiles, namely, fabrics for use in civil engineering; pantiles, not of metal; shutters, not of metal; non-metal mosaic tiles for building; building panels, not of metal; grog fired refractory material, namely, refractory shapes not of metal; roof coverings, not of metal; concrete building materials, namely, blocks, bricks and posts; rigid pipes, not of metal, for building; refractory construction materials, not of metal; clinker stone; manufactured timber; window glass, other than vehicle window glass; wood pulp board for building; planks of wood for building; staircase stringers, not of metal; tarred felt strips for building; window frames, not of metal; pitch; roof flashing, not of metal; non-metal hips for roofing; lintels, not of metal; angle irons, not of metal; balustrades, not of metal; duckboards, not of metal; cornices, not of metal; cladding, not of metal, for building; props in the nature of beams, not of metal; moldings, not of metal, for cornices; reinforcing materials, not of metal, for building; agglomerated cork for building; building timber; branching pipes, not of metal; fireproof cement coatings; vinyl siding; roofing, not of metal; floor tiles, not of metal; joists, not of metal; roofing tiles, not of metal; gutter pipes, not of metal; water-pipes, not of metal; wall tiles, not of metal; penstock pipes, not of metal; porches, not of metal; partitions for building, not of metal; flashing, not of metal, for building; pillars, not of metal, for building; concrete; cement slabs; wall linings, not of metal, for building; asbestos cement; building glass; shuttering, not of metal, for concrete; wooden floor boards; safety glass for building; fire burrs in the nature of stone for building and construction; asphalt felt for building; jalousies, not of metal; floors, not of metal; paperboard for building; asphalt-based coatings for use on building foundations