Non-metallic building materials; non-metallic transportable buildings; non-metallic rigid pipes for building; cabanas, not of metal; floors, not of metal; tiles for building, not of metal; water pipes, not of metal; mosaics for building; floor tiles, not of metal; tiles, not of metal; non-metallic partitions for bath and shower; wall and floor panels of ceramic material and natural stone, including small mosaic tiles and bricks; plate glass (windows) for building; window glass, except glass for vehicle windows