19 Non-metallic building and construction materials and elements, namely, wood, wood derivatives, treated wood, pressure treated wood, modified wood, lumber, thermally treated lumber, semi-worked woods, cask wood, chemically treated lumber, preserved wood, pressure treated wood columns, wood balustrades, wood beams, wood floor boards, wood building frames, wood wall frames, wood door frames, wood window frames, wood ceiling panels, wooden cornices, wooden gates and preserved wood; building materials, namely, semi worked wood; artificial wood, namely, wood trim, wood veneers, wood cladding; non-metallic rigid pipes for building; asphalt, pitch and bitumen; monuments not of metal; non-metallic transportable buildings; non-metal decking boards; wood panels and planks for building; window frames, doors, gates, windows and window coverings, being shutters, high performance covers for use in protecting window openings, not of metal; doors of wood; wooden shutters; wooden building materials, namely, lumber and treated wood in the nature of wood based panel products; wood and derivatives of wood all for building purposes, namely, lumber and treated wood in the nature of wood based panel products; wooden decking boards; wood flooring; wood fibreboard; wood chipboard; wood floor tiles; sawn wood; wood joists; wood veneer; glue laminated wood; wood blocks; wood tar; wood posts; wood beams; wood rafters; wooden buildings, namely, portable non-metal buildings, prefabricated non-metal buildings, transportable buildings made of timber