35
Advertising; advertising agency services; presentation of goods on communication media, for retail purposes; online advertising on a computer network; providing commercial information and advice for consumers in the choice of products and services; sales promotion for others; marketing; business research; professional business consultancy; office machines and equipment rental
37
Electric appliance installation and repair; installation and repair of air-conditioning apparatus; machinery installation, maintenance and repair; building sealing; plumbing; repair of power lines; providing information relating to repairs; installation of doors and windows; kitchen equipment installation; assembly services relating to the installation of furniture; office machines and equipment installation, maintenance and repair; consultancy relating to the installation, maintenance and repair of computer hardware; hydraulic fracturing services; upholstery repair; heating equipment installation and repair; freezing equipment installation and repair; photographic apparatus repair; clock and watch repair; safe maintenance and repair; rustproofing; furniture maintenance; laundering; disinfecting; elevator installation and repair; telephone installation and repair; Maintenance and repair of security installations
42
Technological research; mechanical research; material testing; industrial design; interior design; consultancy in the design and development of computer hardware; computer system analysis; unlocking of mobile phones; internet security consultancy; monitoring of computer systems to detect breakdowns