1) Class: 37
Description: installation of building automation equipment, electrical installation services, installation services, irrigation devices installation and repair, construction information, installation and maintenance services, maintenance and repair, heating equipment installation, electric appliance installation, machinery installation, telecommunication wiring, security system installation, installation and repair services, installation, maintenance and repair of automation systems, automated vending machine installation and repair, instrumentation system installation, machine installation services, communications network instrument installation, communications network apparatus installation, electric appliance installation and repair, heating equipment installation and repair, lighting system installation, installation and repair services for irrigation systems, construction, building construction, repair services, installation, maintenance and repair services, telephone installation, freezing equipment installation and repair, kitchen equipment installation, telephone installation and repair, computer installation and repair, elevator installation and repair, roofing installation, maintenance services, repair, maintenance and installation consultancy services, installation, maintenance and repair of computer hardware, installing fencing, electrical wiring services, interference suppression in electrical apparatus, elevator installation, office equipment installation, antenna installation and repair, installation, maintenance and repair of mechanically operated apparatus for opening and closing ventilation flaps, tunnel construction, installation, maintenance and repair of automatic apparatus for opening and closing windows, fanlights, skylights and ventilation flaps, installation, maintenance and repair of passenger elevators, moving sidewalks, passenger bridges, moving stairways and stairway lifts, wireless lock installation, hydroelectric factory construction, installation, maintenance and repair of passenger elevators, moving sidewalks, passenger bridges, escalators and stairway lifts, installing siding, diamond head drilling for tunnel construction, installation, maintenance and repair of automatic apparatus for opening and closing ventilation flaps, electric apparatus installation, installation, maintenance and repair of mechanically operated apparatus for opening and closing fanlights, installation, maintenance and repair of mechanically operated apparatus for opening and closing skylights, installation, maintenance and repair of mechanically operated apparatus for opening and closing windows, fanlights, skylights and ventilation flaps, installation, maintenance and repair of mechanically operated apparatus for opening and closing windows, installation, maintenance and repair of automatic apparatus for opening and closing windows, office machines and equipment installation, maintenance and repair, machinery installation, maintenance and repair, open pit mining services, underground construction, pipeline construction, building maintenance, carriageway construction, building maintenance and repairs, burglar alarm installation, fire alarm installation, fire alarm repair, burglar alarm device repair, fire alarm installation and repair, installation of burglar alarms, installation and maintenance of fire alarm, detection and suppression systems, maintenance and servicing of fire alarm systems, repair or maintenance of fire alarms, maintenance of fire alarm installations, burglar alarm device installation, burglar alarm installation and repair