37 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, steel stacks; repair and maintenance of mechanical parking systems; repair and maintenance of containers of metal for the transport of goods; repair and maintenance services of aero engines or engines for aircraft; repair and maintenance of computer hardware for use in aerospace industry; repair and maintenance services of missiles, namely, ballistic, cruise, guided, and ship-to-air missiles; installation, repair and maintenance services of boilers, steam turbines, gas turbines, water turbines; maintenance, servicing, tuning and repair of motors and engines; 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 services of agricultural machinery, construction machinery, chemical machinery, iron and steel manufacturing machinery, plastic injection molding machinery; repair and maintenance services of pumps, air blowers, power shift transmissions; repair and maintenance services of pulp-making, papermaking or paper-working machines and apparatus, printing machinery or food packaging machinery; installation, repair and maintenance services of air pollution prevention plants; installation, repair and maintenance of environmental control systems primarily comprised of solar energy, renewable energy resources, rainwater, or air conditioning 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; repair and maintenance of forklift trucks, tractors, tanks, armored cars, ambulances, fire trucks, refrigerated vehicles, mobile cranes, bulldozers, road rollers, diggers, dump trucks, and earth movers in the nature of graders; construction supervision services; 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 elevators, escalators or 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, 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 traffic lights and electronic signaling apparatuses; installation, repair and maintenance of electric or electronic equipment in automobiles; repair and maintenance of buildings; 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; reconstruction and equipment installation of ships, aircrafts, buses, trucks, automobiles, forklift, cars for agriculture, sounding rockets, transportation rockets, space vehicles, tanks, armored cars, ambulances, fire trucks, refrigerated vehicles, mobile cranes, bulldozers, road rollers, diggers, dump trucks, tractors, and earth movers in the nature of graders; repair and maintenance of three dimensional (3D) printers; remote monitoring for the purpose of maintenance of the operating condition of elevators, escalators and moving sidewalks; remote monitoring for the purpose of maintenance of the operating condition of air conditioning, heating, plumbing and sanitary installation for buildings; remote monitoring for the purpose of maintenance of the operating condition of building equipment; providing information on remote monitoring for the purpose of maintenance of the operating condition of building equipment; remote monitoring for the purpose of repair and maintenance of the operating condition of agricultural machines and providing information relating thereto; remote monitoring for the purpose of maintenance of the driving condition of vehicles and vehicle equipment; remote monitoring for the purpose of maintenance of the operating condition of facilities at industrial factories and plants; repair and maintenance of metal working machines; repair and maintenance of electronic telecommunication machines and apparatus; repair and maintenance of power distribution and control machines; repair and maintenance of power generators; maintenance of operating condition of elevators by remote control apparatus; maintenance of operating condition of escalators by remote control apparatus; 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 repair and maintenance of agricultural machines by remote control apparatus and providing information relating thereto; maintenance of driving condition of vehicles by remote control apparatus; maintenance of condition of vehicle cargo and freight by remote control apparatus; maintenance of operating condition of factories and plants by remote control apparatus