7
Machines, mechanically operated apparatus and installations (mainly consisting of machines and mechanically operated apparatus) for environmental protection especially for industrial air pollution control, namely machines, mechanically operated apparatus and installations, including thermal oxidisers, carbon adsorbers, bio-filters, wet scrubbers, filtration and/or electrostatic precipitators, namely machines, mechanically operated apparatus and installations for industrial heat recovery containing heat exchangers and/or recuperators (heat regenerators) for the collection, for the recovery and for the reuse of waste heat from industrial manufacturing processes and namely machines, mechanically operated apparatus and installations for industrial dryer and process optimisation for improving the product quality, the production speed and the energy efficiency with a reduction in emissions containing heat exchangers and/or recuperators (heat regenerators) for the collection, for the recovery and for the reuse of waste heat from industrial processes
11
Machines, mechanically operated apparatus and installations (mainly consisting of machines and mechanically operated apparatus) for waste air sanitation; Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes; heat exchangers; heat recovery apparatus; heat recovery systems; heat recovery units; heat transfer apparatus; heat transfer units; heat accumulators; recuperators (heat regenerators)
37
Repair, maintenance, modification and new installation of apparatus, machines and installations for heat recovery and for waste air sanitation, in particular in the field of printing, coating and processing technology
42
Services of an engineering agency, in particular metrological engineering work and analytical evaluations as well as optimisation with the aim of emission reduction and exhaust air disposal in the field of printing, coating and processing machines; services of an engineering agency with the aim of optimisation of heat recovery