6
Common metals and their alloys; Steels, in particular stainless steels, coated steels, lacquered steels and pre-lacquered steels, carbon steels, chrome steels, galvanised steels; Metal building materials, metal covering materials and elements for roofs; Sections of metal, multi-layer metal products, sheet metal, sheet metal sandwich panels, coated sheet metal, metal panels, plates of metal; Linings of metal, weatherboarding of metal; Metal coverings; Steel sections; Transportable buildings of metal, buildings of metal sections; Metal goods of all kinds for covering and structuring buildings; Panels, jackets and coverings of metal, for soundproofing
17
Insulating materials; Insulators; Polyurethane foam; Insulating paints and varnishes
19
Building materials (non-metallic), sections, multi-layered boards, panels, plates; Linings, weatherboarding; Covers, all the aforesaid products being not of metal; Non-metallic transportable buildings, including shelters and parts of shelters not of metal, Construction using insulating profile sections, panels and sandwich sheets