37 Civil engineering construction; construction of buildings and infrastructure systems for buildings; building construction supervision; construction of public works, namely, public buildings, transport infrastructure, namely parking lots and public spaces, namely airports; scaffolding repair and erection; repair and maintenance of facades; maintenance and repair of buildings; maintenance and repair of utilities in buildings; repair and maintenance of public highways; construction consultancy services; construction information; interior and exterior cleaning of buildings; installation services provided in the construction of buildings and structures, namely, heating, cooling and environmental control systems, renewable energy resources and rainwater, electricity, natural gas, water, telecommunications equipment, building scaffolds, working and building platforms; rental, maintenance and repair of hand and power tools, oil well drilling tools, pneumatic and hydraulic construction tools, machinery and equipment for building and demolition; asphalting; rental of construction machines, namely, conveyor belts, bulldozer, dumpers, forklift trucks, welding machines, illumination towers, Lift platforms, cement mixer, pumping systems; real estate development of construction projects; construction project management services, namely, development of construction projects