37 Building construction supervision, repair and maintenance services rendered via telecommunication networks, namely repair and maintenance of heating installations, including boilers, air conditioning installations, gas pipelines, electric appliance installations, namely electric kitchen appliances, electric heating appliances, electric lighting appliances, installations for storing energy, namely, fuel cells, batteries; installation of building insulation; maintenance and repair of burners; installation, maintenance and repair of heating and cooling equipment, condensing apparatus, steam condensers, radiators for motors and engines, air reheaters, boiler tubes, pumps, namely heat pumps, boiler pumps, electric motors, gas water heaters, gasoline station equipment, power distribution and power control machines and apparatus, power generators and storage tanks, namely, gas storage tanks, fuel storage tanks; mining extraction and oil extraction, namely drilling and pumping of oil; installation, maintenance and repair of installations for producing, transporting, storing and delivering gas and energies, namely furnaces and air conditioning units for industrial and household purposes, gas water heaters for industrial and household use, pumps, namely, heat pumps, boiler pumps, gasoline station equipment, power generators, heat accumulators, heat generators, nuclear generators, nuclear reactors, steam heating apparatus for industrial purposes, offshore oil platforms, offshore gas platforms, gas tanks for land vehicles, gas tankers for boats, pipelines and storage tanks, namely, gas storage tanks, fuel storage tanks