41.20.Z - Building works related to erection of residential and non-residential buildings
08.11.Z - Quarrying of ornamental stone, limestone, gypsum, slate and other stone
08.12.Z - Operation of gravel and sand pits and mining of clay and kaolin
16.10.Z - Sawmilling and planing of wood
16.23.Z - Manufacture of other builders’ carpentry and joinery
23.51.Z - Manufacture of cement
23.52.Z - Manufacture of lime and plaster
23.61.Z - Manufacture of concrete products for construction purposes
23.62.Z - Manufacture of plaster products for construction purposes
23.63.Z - Manufacture of ready-mixed concrete
