37 Building construction; repair of residential and commercial buildings, port works, roads and drainage, site formation and waterworks; installation services for building insulation, building scaffolds, working and building platforms, plumbing, lighting apparatus, pipeline, computers, electrical systems, heating apparatus, tunnels, bridges, highways, sewage systems; real estate and property development; construction of factories, harbours, roads, power plants structures for transportation and storage of fuels, telecommunication apparatus and networks; pipeline maintenance; laying of cables; underwater repair of underwater cables, bridges, swimming pools, tunnels, plumbing, sewage systems; air conditioning apparatus and equipment installation and repair; wallpapering; maintenance and repair of buildings, factories, harbours, power plants, structures for transportation and storage of fuels, telecommunication apparatus and network; installation of electrical apparatus and appliances, power generating and transmission apparatus and equipment; bricklaying; plastering; plumbing; heating equipment installation and repair; burglar alarm installation and repair; elevator installation and repair; cleaning of buildings exterior surface and interior; scaffolding erection; provision of information relating to construction and repair, supervision of building construction, excavation, land reclamation, demolition, building decoration installation; renovation and refurbishment services in the field of residential buildings, commercial buildings, industrial buildings, apartments, houses, offices, shopping centers; vehicle lubrication services; repair and maintenance of aircrafts; oil pumping and rental of construction equipment; and road paving and roofing services; electric appliance repair; construction information services; advisory service relating to the repair of buildings, plumbing, environmental control systems, civil engineering structures; fire alarm installation and repair; furnace installation and repair; kitchen equipment installation; lift installation and repair; machinery installation, maintenance and repair; motor vehicle maintenance and repair; office machines and equipment installation, maintenance and repair; pipeline construction and repair; pump repair; warehouse construction and repair; asphalting; building construction supervision; building sealing; damp-proofing; demolition of building; plastering; pier breakwater building; masonry; rental of bulldozers; rustproofing; painting or repair of signs; underwater construction of bridges, underwater pipelines, dams, tunnels, sewage systems; upholstering; window cleaning; boiler cleaning and repair; car wash, dry cleaning; disinfecting; ironing; irrigation devices installation and repair; mining extraction; motor vehicle wash; vehicle polishing, telephone installation and repair; rat exterminating for residential homes and commercial buildings; housekeeping services, namely, cleaning of residential houses