43.22.Z - Plumbing, heat and air-conditioning installation
41.10.Z - Realization of building projects related to erection of buildings
41.20.Z - Building works related to erection of residential and non-residential buildings
42.21.Z - Construction of utility projects for fluids
43.29.Z - Other construction installation
46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies
47.52.Z - Retail sale of hardware, building materials, paints and glass
71.11.Z - Architectural activities
71.12.Z - Engineering activities and related technical consultancy
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts