37 Building construction; building repair; installation services in the field of residential construction, commercial and office construction, industrial and logistics construction, sports and recreational construction, and infrastructure construction relating to upkeep of roads, streets and rail networks, namely, installation of electrical systems, HVAC systems, plumbing systems, fire protection systems, alarm systems, lighting systems, cooling systems, heating systems, telecommunication systems, data network systems, security systems, automation systems, irrigation systems, and structural and decorative building elements and components, namely, building timber, building stones, building glass, concrete blocks, bricks, pavers, posts, slabs, panels, beams, girders, drywall, columns, paving stones, tiles, walls, wall forms, facades, floor slabs, flooring, shutters, shingles, siding, pipes, paneling, gutters, windows and window frames, doors and door frames, fireplaces, chimneys, stairs and staircases, ceilings, and roofing; residential building construction services and infrastructure construction services, namely, municipal infrastructure construction services, water supply infrastructure construction services, sewer infrastructure construction services, public transportation infrastructure construction services, bridge infrastructure construction services, airport infrastructure construction services, pedestrian tunnels infrastructure construction services, noise barrier infrastructure construction services, road infrastructure construction services, and rail network infrastructure construction service; infrastructure building construction services; installation, repair and maintenance services related to technical building services; consulting services related to residential construction, infrastructure construction and installation, repair and maintenance of technical building services; repair and maintenance services of real estate; quarrying, crushing and screening of minerals aggregate; construction services, namely, asphalt paving and foundation structuring; installations, maintenance and repair of automation systems; metal and steel structures construction; building of telecommunications networks