Work of maintenance and mechanical repairs for third parties
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
Other work of n.e.s. installation, including accessories installation
Work of general installation
Repair of metal products
Repair of machines
Plumbing works
Installation of heating, air-conditioning and ventilation
Other types of cleaning of buildings; industrial cleaning