19 Swimming pools structures, not of metal; joists, not of metal; beacons, not of metal, non-luminous; diving boards, not of metal; prefabricated houses kits, not of metal; cabanas, not of metal; framework, not of metal, for building; mooring bollards, not of metal; buildings, not of metal; buildings, transportable, not of metal; staircases, not of metal; road coating materials; building materials, not of metal; masts poles, not of metal; duckboards, not of metal; palings, not of metal; crash barriers, not of metal, for roads; props, not of metal; fair huts; building panels, not of metal; partitions, not of metal; platforms, prefabricated, not of metal; paving slabs, not of metal; paving blocks, not of metal; floors, not of metal; floating docks, not of metal, for mooring boats; pilings, not of metal; posts, not of metal; stair-treads steps, not of metal