19 Building materials not of metal, namely, ingots, bands, sheets, plates, foils, strips, rods and pipes, beams, blocks, panels, profiles, joists, tubes, trims, props, frames, doors claddings, veneers, laminates, roofs and facades all aforesaid for building and construction purposes; roof coverings not of metal; floors, not of metal; cornices not of metal; panel coverings not of metal, namely, roofing panels, cladding panels, ceiling panels and wood panels; supporting structures for buildings, namely, scaffolding not of metal; wainscotting not of metal; wall partitions not of metal; staircases not of metal; stair treads not of metal; doors not of metal; supporting structures not of metal; for buildings, namely, superstructures and substructures; covering materials for buildings not of metal, namely, sheets, foils, plates, panels; formwork elements not of metal; buildings not of metal; transportable buildings not of metal; building timber; manufactured timber; formed wood for use in construction; formed wood, namely, compressible wood pulp wood; semi-worked wood; wood veneers; veneer wood; marking posts for roads, not luminous, not mechanical and not of metal; advertisement columns not of metal; wood, namely, lumber for construction and building purposes; balsa wood; wood and balsa wood in the form of blocks, beams, planks, panels, veneers, veneer wood, malleable and non-malleable, rods, decorative rods, mats, wainscotting, shafts, and tubes; multi-layered materials and mixtures of materials, made primarily of wood for building or construction purposes, namely, ingots, bands, sheets, plates, foils, strips, rods and pipes, beams, blocks, panels, profiles, joists, tubes, trims, props, frames, doors claddings, veneers, laminates, roofs and facades; multi-layered materials and mixtures of materials made primarily of wood and multi-layered materials and mixtures of materials consisting partly or chiefly of wood with other materials, namely, metals, resins, adhesives, binding agents, filling materials, synthetic materials or plastics in the form of blocks, beams, planks, panels, veneers, veneer wood, malleable or non-malleable, rods, decorative rods, floor coverings, wainscotting, shafts, tubes for wainscotting, wainscotting structures, multi-layered plates for building and construction purposes, decorative plates and panels for building and construction purposes; covering plates for building and construction purposes; roof plates for internal and external use on buildings; supporting structures of wood for buildings, namely, scaffolding not of metal