Modular homes, not of metal; building and construction materials and elements made of wood and synthetic wood; partitions, not of metal; platforms, prefabricated, not of metal; ducts, not of metal, for air-conditioning installations; ducts, not of metal, for ventilating and air-conditioning installations; ducts, not of metal, other than for electrical circuitry; fiber cement; fiber cement boards; fiber cement siding; refractory products, not of metal, in the form of prefabricated structural elements; rock materials for use as cladding; porches [structures], not of metal; heating ducts, not of metal; fireproof cement coatings; flooring or wall claddings of synthetic materials; materials, not of metal, for building and construction; wall claddings, not of metal, for building; canopies [building structures], not of metal and not of textile; cement; cement mortar slates; cement slabs; coatings [building materials]; wood pulp board for building; concrete panels; door panels, not of metal; doors, not of metal; drywall panels [building materials]; sheet piles, not of metal; slates for cladding roofs; slates for cladding walls; tile floorings, not of metal; building panels, not of metal; building or construction materials of plaster; prefabricated building kits (not of metal); partitions, not of metal, for building; flooring, not of metal; cladding, not of metal, for building; soffits, not of metal; structural and architectural members formed of pressed wood fibers; waterproof flooring; floor sheets, not of metal; transportable buildings not of metal; building boards, not of metal; building and construction elements and materials made of sand, stone, rock, clay, minerals and concrete; prefabricated houses [kits], not of metal.