- 45 - Construction (59138)
- 45.1 - Preparation of construction site (53877)
- 45.11 - Demolition of buildings, processing of digging (27491)
- 45.11.1 - Demolition, clearing of building sites (10414)
- 45.11.2 - excavate (9199)
- 45.11.3 - Site preparation for mining (319)
- 45.12 - Test drilling (1600)
- 45.2 - Building and construction (149308)
- 45.21 - Civil works (221193)
- 45.21.1 - Civil works for the construction of buildings (84964)
- 45.21.2 - Civil works for the construction of bridges, elevated highways, tunnels and subways (10236)
- 45.21.3 - Civil works for laying of pipelines, communication lines and power lines (7617)
- 45.21.4 - Civil works for laying and laying pipelines, communication and power lines, including related ancillary works (9371)
- 45.21.5 - Civil works for the construction of power plants and installations for the mining and manufacturing industries (127)
- 45.21.51 - Civil works for the construction of hydroelectric power plants (106)
- 45.21.52 - Civil works for the construction of nuclear power plants (111)
- 45.21.53 - Civil works for the construction of thermal power plants and other (331)
- 45.21.54 - Civil works for the construction of facilities for the mining and manufacturing industries (452)
- 45.21.6 - Civil works for the construction of other buildings and structures, not nec (4119)
- 45.21.7 - Installation of buildings, prefabricated (6044)
- 45.22 - The unit covers buildings and structures (6523)
- 45.23 - Construction of roads, airfields and sports facilities (4716)
- 45.23.1 - Civil works for the construction of roads, railways and runways runways (9228)
- 45.23.2 - Construction of sports facilities (630)
- 45.24 - Construction of water projects (619)
- 45.24.1 - Construction of port facilities (114)
- 45.24.2 - Construction of hydraulic structures (1114)
- 45.24.3 - dredging and shore protection (299)
- 45.24.4 - Production of underwater operations, including diving (463)
- 45.25 - Manufacture of construction (12139)
- 45.25.1 - Installation of scaffolding and scaffolding (383)
- 45.25.2 - Foundation engineering and water well drilling (2029)
- 45.25.3 - Production of concrete and reinforced concrete work (1825)
- 45.25.4 - Installation of metal constructions (5179)
- 45.25.5 - Production Masonry (1168)
- 45.25.6 - Other construction work requiring special skills (2873)
- 45.3 - Installation of building services and structures (20489)
- 45.31 - Production Services (45837)
- 45.32 - Manufacture of insulation (2356)
- 45.33 - Manufacture of sanitary works (21551)
- 45.34 - Installation of other engineering (6876)
- 45.4 - Manufacture decorating (29294)
- 45.41 - Plastering works (10586)
- 45.42 - Manufacture of joinery and carpentry work (6961)
- 45.43 - Device Floor and wall covering (3206)
- 45.44 - Manufacture of Painting and glazing (1529)
- 45.44.1 - Production of glass works (1293)
- 45.44.2 - Production painting work (947)
- 45.45 - Manufacture of decoration and finishing works (11274)
- 45.5 - Rental of construction machinery and equipment with operator (2091)
- 45.50 - Rental of construction machinery and equipment with operator (5755)