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.
Construction of other types of civil-technical works
Installation of heating, air-conditioning and ventilation
Demolishing
Production of synthetic materials meant for the building trade
Production of metal works for construction and parts thereof
Working by stock removal of metals
Production of furniture meant for use in dining rooms, living rooms, bedrooms and bathrooms