11
Apparatus and installations for lighting, heating, steam generating, refrigerating, drying, ventilating, water supply and sanitary purposes; Air conditioning apparatus and installations; Air and water purifying apparatus and machines
35
Marketing studies and marketing research; Consultancy relating to business organisation, direction and management; Computerized file management; Compilation, systemisation, and administrative and commercial processing of data in computer databases; Wholesaling or retailing of heat generation, heat recovery, drying, air conditioning, ventilating, heat pump, electricity generation and electrical converter apparatus and installations
40
Material treatment information; Air purification; Decontamination of hazardous materials; Energy production; Waste disposal [treatment of waste]; Sorting of waste and secondary raw materials (transformation); Recycling of waste and trash; Information and providing of consultancy relating to energy generation
42
Engineering evaluations, estimates and research in the field of science and technology; Design and development of computer hardware and software; Research and development for others; Conducting technical project studies; Design, installation, maintenance, updating and rental of computer software; Computer programming; Computer system analysis; Computer system design; Consultancy in the field of computers; Conversion of computer programs and data, other than physical conversion; Conversion of data or documents from physical to electronic media; Styling (industrial design)