Making of horizontal drillings for cables or pipes
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.
Retail trade of n.e.s. household appliances and articles
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Installation of heating, air-conditioning and ventilation
Construction of chimneys and mantelpieces
Retail trade in other domestic products in specialised shops
Other types of retail trade in new goods in specialised shops