Shipbuilding; machinery installation in the field of aircraft and aerospace; repair and maintenance services of ships, propellers for ships or contrarotating propellers for ships; repair and maintenance of bridges; repair and maintenance of tunnel ventilation apparatus; repair and maintenance of storage tanks; repair and maintenance of hydraulic gates and steel stacks; repair and maintenance of mechanical parking systems; repair and maintenance of transport containers; repair and maintenance services of aero engines or engines for aircraft; repair and maintenance of computer hard ware for use in aerospace industry; repair and maintenance services of missiles; installation, repair and maintenance services of boilers; construction, installation, repair and maintenance of chemical plants or industrial plants; construction, installation, repair and maintenance services of thermal power generating plants, geothermal power generating plants, wind-power generating plants, hydroelectric power generating plants, diesel power generating plants, combined cycle power generating plants, power generating plants or nuclear power plants; construction, installation, repair and maintenance services of movable seat equipment for sports, cultural, amusement or commercial facilities; repair and maintenance of air blowers and power shift transmissions; repair and maintenance of printing machinery and food packaging machinery; installation, repair and maintenance services of air pollution prevention plants; installation, repair and maintenance of environmental control systems; installation, repair and maintenance of refrigeration apparatus; installation, repair and maintenance of air conditioning apparatus; repair and maintenance services of machine tools; repair and maintenance of industrial robots; repair and maintenance of turbochargers, tractors, tanks being weapons, armored cars, ambulances, fire trucks, refrigerated vehicles, bulldozers, road rollers, diggers, dump trucks or graders for earth moving machines; building construction supervision services and planning services for construction project; construction, reconstruction, and restoration of residential, retail store, hotel, commercial, industrial and institutional buildings; construction and maintenance services relating to civil engineering structures; construction management of civil and infrastructure construction projects; installation, repair and maintenance of consumer electric appliances; installation, repair and maintenance of moving sidewalks; installation, repair and maintenance of freezing machines and apparatus or heating apparatus; installation, repair and maintenance of lighting apparatus; installation, repair and maintenance of telephones; installation, repair and maintenance services of computer hardware; installation, repair and maintenance of office machines and apparatus; installation, repair and maintenance of film projectors or photographic apparatus; installation, repair and maintenance of electric wires or cables, radio receivers, television receivers, and electronic apparatus; installation, repair and maintenance of tire alarms or burglar alarms; installation, repair and maintenance of measuring or testing machines and instruments; installation, repair and maintenance of medical apparatus; installation, repair and maintenance of flight simulators, computer hardware for simulating a design of machines and installations or computer hardware for simulating virtual reality used with electronic games apparatus; installation, repair and maintenance of signalling apparatus; installation, repair and maintenance of electric or electronic equipment in automobiles; repair and maintenance of building; repair and maintenance of telecommunication apparatus; vehicle maintenance and repair; vehicle polishing; vehicle lubrication; vehicle greasing; vehicle washing; vehicle cleaning; anti-rust treatment for vehicles; vehicle service stations for refueling and maintenance; reconstruction and equipment installation of ships, aircrafts, buses, trucks, automobiles, cars for agriculture, sounding rockets, transportation rockets, space vehicles, tanks as weapons, armored cars, ambulances, fire trucks, refrigerated vehicles, mobile cranes, bulldozers, road rollers, diggers, dump trucks, tractors or graders as earth moving machines; repair and maintenance of 3D printers; repair and maintenance of electronic telecommunication machines and apparatus; repair and maintenance of power distribution and control machines; maintenance of moving sidewalks by remote control apparatus; maintenance of operating condition of air conditioning, heating, plumbing and sanitation for buildings by remote control apparatus; maintenance of operating condition of building equipment by remote control apparatus; providing information on maintenance of operating condition of building equipment by remote control apparatus; maintenance of driving condition of vehicles by remote control apparatus; maintenance of condition of vehicle cargo and freight by remote control apparatus; maintenance of physical condition of vehicle occupant cockpits by remote control apparatus; maintenance of operating condition of factories and plants by remote control apparatus