43.12.Z - Site preparation
23.61.Z - Manufacture of concrete products for construction purposes
33.12.Z - Repair and maintenance of machinery
41.20.Z - Building works related to erection of residential and non-residential buildings
42.11.Z - Works related to construction of roads and motorways
43.11.Z - Demolition
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
45.11.Z - Sale of cars and light motor vehicles
46.13.Z - Agents involved in the sale of timber and building materials
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.77.Z - Wholesale of waste and scrap
49.41.Z - Freight transport by road
68.10.Z - Buying and selling of own real estate
77.32.Z - Rental and leasing of construction machinery and equipment
