Plastic tiles for floors and walls; plastic prefabricated portable roads, paths and tracks; plastic prefabricated portable helicopter landing pads; plastic prefabricated portable flooring, duckboards not of metal and portable stages for use indoors, outdoors and in marquees or tents; non-metal protection systems comprised of interlocking tiles used as temporary surfaces to protect and provide access over existing grass, soil, stadium turf and sports playing surfaces; plastic prefabricated por...