Construction elements not made of metal, namely, wood door frames, doors, windows, wooden door casings, wooden window casings, plywood boards, wood partitions, railway wooden sleepers, wooden staircase stringers, wood linings, wooden paneling, wooden poles, wooden plating, wooden laths, wood floors, wood panels, wooden planks, wooden boards, wooden floorboards, wooden floor tiles, woodworks, wooden beams, swan wood, unveneered wood, squared wood, building timber, manufactured timber, moldable wood, semi-worked wood and worked wood.