37
Installation, maintenance and repair of equipment and installations in the field of air technology, air conditioning technology, cooling technology, flow technology, engine technology, control technology, drive technology, medical technology, building technology, laboratory technology, household technology and gas technology; HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair
42
Scientific and technological services, namely, scientific research, technology consultation and research in the field of heating and ventilation systems; engineering design; computer aided design services; engineering services, in particular in the field of air technology, air conditioning technology, cooling technology, flow technology, engine technology, control technology, drive technology, medical technology, building technology, laboratory technology, household technology and gas technology; development of fans and electric motors; engineering research; engineering consultancy services; engineering services; technical project planning in the field of engineering; technical consultancy for drive and ventilation technology, namely, technical research with regard to the use and incorporation of electric motors, fans, ventilators and blowing machines; technical consultancy relating to product development for others, for drive, ventilation and air conditioning technology
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