6
Common metals and their alloys; Metal building materials; Transportable buildings of metal; Materials of metal for railway tracks; Non-electric cables and wires of common metal; Ironmongery, small items of metal hardware; Pipes and tubes of metal; Safes; Goods of common metal not included in other classes; Ores
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, aeration, dust extraction, air conditioning, air diffusion and water supply and sanitary purposes; Heating, ventilation, aeration, dust extraction, air conditioning and air diffusion installations; Pipes, pipe sections, junctions for pipes, air diffusers, air diffuser parts, air intake and air outlet grilles, air intakes and air outlets, air passages, air valves, air valve attachments, control valves and current regulators for heating, ventilating, aerating, dust extraction, air conditioning and air diffusion installations and equipment
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; Plastics in extruded form for use in manufacture; Packing, stopping and insulating materials; Flexible pipes, not of metal
19
Building materials (non-metallic); Non-metallic rigid pipes for building; Asphalt, pitch and bitumen; Non-metallic transportable buildings; Monuments, not of metal
37
Building construction; Repair; Installation services
42
Scientific and technological services and research and design relating thereto; Industrial analysis and research services; Design and development of computer hardware and software