11
Drying apparatus and installations; Driers (Air -); Apparatus for ventilating; Driers (Air -); Air dehurnidifiers; Equipment and apparatus for air treatment; Air purifying apparatus and machines; Air conditioning apparatus; Air filtering installations; Air filtration apparatus and installations; Ventilation hoods; Ionisation apparatus for the treatment of air; Air heating apparatus; Air cooling apparatus; Fans [parts of air-conditioning installations]
37
Installation, servicing, maintenance and repair of air treatment apparatus and machines, drying apparatus and machines, air dryers, apparatus for ventilating purposes, air dehydrators, air dehumidifiers, and air purification apparatus and machines; Installation, servicing, maintenance and repair of air conditioning apparatus, air filtering apparatus, air filtration apparatus, ventilation hoods, ionisation apparatus for the treatment of air, air reheaters, air cooling devices, and fans; Installation, servicing, maintenance and repair of construction equipment; Repair information; Hire of building machinery; Providing of information relating to the rental of construction equipment
40
Rental of air treatment apparatus and machines, drying apparatus and machines, air dryers, apparatus for ventilating purposes, air dehydrators, air dehumidifiers, and air purification apparatus and machines; Rental of air conditioning apparatus, air filtering apparatus, air filtration apparatus, ventilation hoods, ionisation apparatus for the treatment of air, air reheaters, air cooling devices, and fans; Air treatment services
42
Conducting technical project studies; Research, development (of new products for others) and design of air treatment apparatus and installations, and apparatus and installations for drying, ventilating, dehydrating, dehumidifying, purifying, conditioning, filtering and filtration of air; Research, development (of new products for others) and design of ventilation hoods, ionisation apparatus for the treatment of air, air reheaters, air cooling devices, and fans