flexible rubber hoses; rubber hose pipes; hose pipes of rubber; hoses of plastic; flexible hose pipes of rubber; hoses made from elastomer lined woven textiles; rubber hoses for agricultural use; hoses made of plastic; plastic hoses; hoses of textile material; flexible hoses of plastic; flexible hoses of rubber; hoses adapted for irrigation purposes; rubber hoses; flexible hose pipes made of rubber; flexible hoses made of rubber; flexible hoses for conveying liquids; hoses of rubber; hose pipes made of rubber; rubber hoses for agricultural purposes; irrigation hoses

stainless steel pipes; pipe clamps of metal; pipe fittings of metal; pipe connectors of metal; ventilating ducts of metal; ducts of metal for ventilating installations; ducts of metal for ventilating and air conditioning installations; grilles of metal for ventilation openings; gratings of metal for ventilation openings; ducts of metal for ventilating and air-conditioning installations; metal ducts for ventilating and air conditioning installations; vent covers of metal for HVAC ducts; metal ducts for ventilating and air-conditioning installations; metal vent covers for HVAC ducts; heating ducts of metal; ducts and pipes of metal for central heating installations; pipes of metal for liquid and gas transfer; valves of metal for water pipes; metal valves for water pipes; metal valves for controlling the flow of gases in pipelines; manually operated metal valves, other than parts of machines; metal water-pipe valves; all of the aforementioned for use with rigid metal pipes; none of the aforementioned for use with flexible hose pipes, hoses of rubber, elastomer, plastic or textile material, or hoses for irrigation or agricultural purposes.

installation of apparatus for ventilation; installation of ventilation apparatus; ventilation apparatus installation; installation of ventilation and dust extraction systems; installation of heating, ventilation and air-conditioning systems; installation of apparatus for ventilating; ventilation hood cleaning services; installation of ventilating apparatus; cleaning of ventilation hoods; installation of heating, ventilation and air-conditioning [HVAC] systems; installation and repair of heating, ventilating and air-conditioning systems; repair of ventilating apparatus; installation, maintenance and repair of heating, ventilation and air-conditioning [HVAC] systems; installation, maintenance and repair of ventilating systems; maintenance and repair of ventilating apparatus; repair and maintenance of ventilating apparatus; air conditioning vent sealing services; routine servicing of ventilating apparatus; installation, maintenance and repair of ventilating apparatus; installation of apparatus for conditioning air; retrofitting of ventilating installations in buildings; ventilating apparatus instrallation; installation of apparatus for air conditioning; installation, maintenance and repair of industrial breathing air systems; installation, maintenance and repair of HVAC [heating, ventilation and air conditioning] systems; plumbing; air conditioning apparatus installation; cleaning of air conditioners; installation of HVAC systems; installation of apparatus for air-conditioning; installation of heating, refrigerating, air-conditioning, drying, ventilating and dust extraction apparatus; civil engineering construction; marine engineering [construction services]; construction engineering services [construction consultancy]; construction; industrial construction; civil engineering construction consultancy; civil engineering repair consultancy; construction engineering services [construction supervision]; consultancy in civil engineering construction; installation services; installation and maintenance services; pipeline installation services; installation services of pipelines; repair, maintenance and installation services; installation, cleaning, repair and maintenance services; consultancy relating to installation, maintenance and repair services; provision of information relating to construction, repair, restoration, maintenance and installation services; providing on-line information relating to building construction, and repair and installation services