Manufacture of heaters and boilers for central heating
Repair and maintenance of house boilers
Installation in buildings or in other projects of building of: heating systems by electricity, gas and fuel, boilers, materials and pipes for ventilation and air conditioning, etc.
Installation in buildings or in other projects of building of: heating, cooling and ventilation systems (except heating)
Setting of electrical installations of heating
Production of radiators and boilers used in central heating
Production of steam boilers, with the exception of boilers used in central heating
Installation of heating, air-conditioning and ventilation