transportable buildings of metal; non-electric cables and wires of common metal; metal pipes; noise protection booths of metal; [ noise barriers made of metal; sound absorbers ] * sound absorbing building materials * made of metal, namely, metal ceiling panels, metal floor panels and metal wall panels; soundproofing [ systems comprising metal ceiling panels, metal floor panels and metal wall panels, ceiling boards of metal, floor boards of metal and ] booths of metal, all for gas and steam turbines, cogeneration plants, substations, pumps and refrigeration systems, printing and paper technology machinery and equipment, hydraulic presses and press lines, concrete stone machines, shredders, packaging machines, master cabins and control rooms; * buildings of metal incorporating acoustic measuring rooms, wind channels, rooms and echo chambers with poor acoustic reflexion for gas and steam turbines, cogeneration plants, substations, pumps and refrigeration systems, printing and paper technology machinery and equipment, hydraulic presses and press lines, concrete stone machines, shredders, packaging machines, master cabins and control rooms; * metal booths for varnishing systems, * for * air management components and * for * ventilation systems

electrical, electronic and optical sensors for physical parameters; [ acoustic test chambers comprising acoustic conduits, acoustic couplers and acoustic meters; ] wind tunnels, namely, wind sleeves; anechoic chambers, namely, decompression chambers; [ hall rooms in the nature of electronic testing equipment, namely, sound level meters; ] turbine test benches, namely, wind turbine controller; acoustic test benches in the nature of acoustic conduits

plastic parts in the nature of plates produced by injection molding and pressing processes for sound deadening purposes sold as parts [ of electrical appliances, namely, ovens and stoves as well as parts ] of lighting, heating, steam generating, cooking, refrigerating, drying, ventilating and water conducting equipment and as parts of sanitary installations; air intakes for ventilation systems in the nature of air impellers for ventilation; [ mufflers and sound absorbers sold as parts of ventilation systems, namely, ventilation units for commercial food preparation and food serving; ] diffusers for ventilation systems

pipes not of metal for building, namely, non-metal water pipes and non-metal rigid pipes; bitumen; noise protection booths, not of metal; noise barriers, not of metal, [ sound absorbers, ] * sound absorbing building materials, * not of metal, namely, non-metal ceiling panels and non-metal floor panels; soundproofing [ systems comprising non-metal floor panels and non-metal ceiling panels and ] booths, not of metal, all for gas and steam turbines, cogeneration plants, transformer stations, pumps and refrigeration systems, printing and paper technology machinery and equipment, hydraulic presses and press lines, concrete stone machines, shredders, packaging machines, master cabins and control rooms; * buildings, not of metal incorporating acoustic measuring rooms, wind channels, rooms and echo chambers with poor acoustic reflexion for gas and steam turbines, cogeneration plants, transformer stations, pumps and refrigeration systems, printing and paper technology machinery and equipment, hydraulic presses and press lines, concrete stone machines, shredders, packaging machines, master cabins and control rooms; * non-metal booths for painting systems, air management components and * for * ventilation systems

building construction; repair, * maintenance * and installation of noise protection cabin installations and all of the components, cabins, and plants therefor [ ; construction of noise control booths, noise control equipment and all components, cabins and plants therefor ]