42.91.Z - Works related to construction of water projects
42.11.Z - Works related to construction of roads and motorways
43.99.Z - Other specialised construction activities not elsewhere classified
43.29.Z - Other construction installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.21.Z - Electrical installation
43.12.Z - Site preparation
43.11.Z - Demolition
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.22.Z - Works related to construction of telecommunications and electricity lines
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.12.Z - Works related to construction of railways and underground railways
01.29.Z - Growing of other perennial crops
41.20.Z - Building works related to erection of residential and non-residential buildings
23.61.Z - Manufacture of concrete products for construction purposes
16.10.Z - Sawmilling and planing of wood
09.90.Z - Support activities for other mining and quarrying
08.12.Z - Operation of gravel and sand pits; mining of clays and kaolin
02.40.Z - Service activity related to forestry
02.30.Z - Gathering of wild growing forestry products, excluding wood
02.20.Z - Logging
02.10.Z - Silviculture and other forestry activities, excluding gathering of forestry products
