6
Building and construction materials and elements of metal, namely factory-made building components for the construction of residential, commercial, public and transportable buildings, including beams for building, frames for building, walls for building, facades for building, flooring elements for building, ceiling elements for building and cladding elements for building; Structures and transportable buildings of metal, namely factory-made building components for the construction of residential, commercial, public and transportable buildings, including beams for building, frames for building, walls for building, facades for building, flooring elements for building, ceiling elements for building and cladding elements for building; none of the above relating to windows, roller shutters, roller blinds and related equipment
19
Building and construction materials and elements, not of metal, namely factory-made building components for the construction of residential, commercial, public and transportable buildings, including beams for building, frames for building, walls for building, facades for building, flooring elements for building, ceiling elements for building and cladding elements for building; Structures and transportable buildings, not of metal, namely factory-made building components for the construction of residential, commercial, public and transportable buildings, including beams for building, frames for building, walls for building, facades for building, flooring elements for building, ceiling elements for building and cladding elements for building; none of the above relating to windows, roller shutters, roller blinds and related equipment
37
Building, construction and demolition; none of the above relating to windows, roller shutters, roller blinds and related equipment