Construction consultancy; Providing information relating to building construction; Building construction consultancy; Construction of interior decoration; Installation of advertising signage; Construction of advertising engineering; Repair of civil engineering structures; Construction of civil engineering structures; Carpentry services; Pipeline construction; Construction and repair of air pollution prevention and control projects; Construction services, namely, installation of environmental containment systems; Construction of leak-proofing; Construction of leak-proofing for building; Construction of waterproofing for building; Building sealing; Damp-proofing of buildings; Installation and repair of air conditioning apparatus; Installation and repair of heating equipment; Pipe laying services; Plumbing and electrical services; Aircraft repair and maintenance; Vehicle repair and maintenance; Repair and maintenance of ships; Automobile repair and maintenance; Machinery installation and repair; Machinery installation, maintenance and repair; Electric appliance installation and repair; Services of electricians; Freezing equipment installation and repair; Medical apparatus repair; Installation of cables for Internet access; Cleaning of buildings; Janitorial service for maintaining environmental sanitation; Disinfecting service for maintaining environmental sanitation; Housekeeping services in the nature of cleaning of residential homes; Disinfecting of surgical instruments; Sterilization of medical instruments; Installation and repair of electrical appliances; Maintenance, servicing and repair of household and kitchen appliances; Repair of household and kitchen appliances; Installation of kitchen equipment; Installation and repair of sanitary ware; Rental of construction equipment; Rental of construction machines and apparatus