7 Machines : compressors, aerocondensers, air condensers, suction machines for industrial purposes, compressors for refrigerators, condensers (steam) (parts of machines), de-aerators, de-aerators for feedwater, gas extractors, filtering machines, dairy machines, machines for the manufacture of foodstuffs, feedwater regulators; dust removing installations for industrial purposes.
11 Apparatus and installations for refrigerating, deep-freezing, air conditioning, drying, heating, ventilating, for the production of apparatus and installations for refrigerating, deep-freezing, air conditioning, drying, ventilating, steam generating; refrigerating apparatus and machines, walk-in refrigerators and refrigerating cabinets, heat accumulators and steam accumulators, apparatus and installations for water softening, hot air ovens, apparatus and machines for purification of water and of air, air cooling apparatus, filters for air conditioning; water conduit installations, water distribution and production installations, filtration apparatus, evaporators, humidifiers, milk cooling installations, pasteurisers, air heaters, heat regenerators, air processing chambers, diffusers of air via textile tubing, dessiccating units (apparatus), cooling tunnels, storage containers for ice, for water, stoves (heating apparatus).
37 Repair and maintenance of apparatus and installations for refrigerating, deep-freezing, air conditioning, drying, heating, ventilating, steam generating for all industries and food processing industries.
40 Air deodorising, air purification, air freshening, water treating.
42 Technical studies, technical management and technical assistance relating to refrigerating, air conditioning, drying, heating, ventilating and steam generating installations; studies and design of manufacturing units for foodstuffs, civil engineering, expert advice relating to the treatment of water, air and cold.