19 Beams, not of metal; girders, not of metal; balustrades, not of metal; arbors, not of metal; works of art of stone masonry; works of art of stone, concrete or marble; cornices, not of metal; pillars for building, not of metal; cement posts; chimney cowls, not of metal; brackets for building, not of metal; building panels, not of metal; transportable buildings, not of metal; roofing, not of metal; moldings for cornices, not of metal; duckboards, not of metal; wood paneling; trellises, not of metal; latticework, not of metal; windows, not of metal; wainscotting, not of metal; lintels, not of metal; casement windows, not of metal; platforms, prefabricated, not of metal; wall tiles, not of metal; floor tiles, not of metal; tiles, not of metal, for building; paving slabs, not of metal; cement slabs; clay slabs, not of metal, for building; roof coverings, not of metal; wooden floor boards; cladding, not of metal, for building; ceilings, not of metal; window frames, not of metal; statues of stone, concrete or marble; statuettes of stone, concrete, marble; figurines of stone, concrete, marble; moldings for building cornices, not of metal; porches, not of metal, for building; wall claddings, not of metal, for building; wall linings, not of metal, for building; props, not of metal, for building; signaling panels, non-luminous and non-mechanical, not of metal, for building; partitions, not of metal, for building; linings, not of metal, for building, namely, ceramic tiles for lining; cork floors, not of metal; sills, not of metal, for windows; non-metal hips for roofing