Air conditioning, ventilation and other aerotechnical apparatus, including those for vehicles; heat recovery systems, particularly plate heat exchangers
Environmental Control ApparatusServices provided in the field of construction and repair; installation work, particularly for air conditioning, ventilation and other aerotechnical apparatus
Building Construction and RepairTechnical planning and design, quality control and evaluation for air-conditioning apparatus, ventilation apparatus and other aerotechnical apparatus and engineering consultancy relating thereto
Computer and Scientific