37 Construction services, namely, construction of recycling plants, waste treatment plants, composting plants, biomethanization plants, and landfills, custom construction, commercial building construction, general construction contracting, construction consultation, building construction, construction planning; gas station services, namely, repair or maintenance of gasoline station equipment; building maintenance, repair and cleaning of commercial premises, including recycling and waste treatment plants, business offices and public places, outdoor furniture; street cleaning; window cleaning; cleaning of buildings, including interior and exterior surfaces; furniture installation and assembly; repair and maintenance services for new constructions, namely, urban buildings, industrial buildings, sanitation plants, recycling plants, waste treatment plants, composting plants, biomethanization plants, landfills, roads, railways, irrigation, bridges, and airports; operation, and supervision of fire alarm, detection and suppression systems; maintenance and repair of heating installations, air conditioning systems and ventilating systems; maintenance and repair of fire alarm, detection and suppression systems; laundry services, namely, cleaning, washing, ironing and sorting of garments; electrical installation services, namely, installation of electrical appliances, installation of electrical systems, installation of electrical appliances and systems in recycling and waste treatment plants; installation of photovoltaic installations; installation of kitchen cabinets, kitchen appliances, kitchen equipment; computer installation services; recycling and waste treatment plant pipe installation services; installation services for roofs, recycling and waste treatment plant, fire, burglar alarm installation services; installation of blinds; machinery installation services; plumbing installation services, including sewage, pipe, and drain installation services for recycling and waste treatment plants; central heating installation services; elevator and lift installation services, assembly vehicle customization services, namely, installation of necessary electronic equipment for vehicles used in recycling and waste treatment plants; installation services of vehicle parts, scaffolding installation services for construction, installation services of building scaffolds, construction work and building platforms; drilling pipe installation services; installation services for scaffolding, work and construction platforms for recycling and waste treatment plants; wall brace installation services for walls with air chambers