OG.01
OG.02
OG.03
OG.04
OG.06
OG.08
OG.10
OG.11
OG.12
OS.01
OS.12
OS.21
OS.23
OS.34

VIII
III
VIII
VIII
VI
II
V
V
VII
VI
IV
VIII
III
V

Civil and industrial buildings
Restoration and maintenance of the architectural.
Roads, highways, bridges, viaducts
Underground accessory structures
Aqueducts, gas pipelines, oil pipelines
River structures, defense, hydraulic conditioning and reclamation
Installations for high/medium tension conversion
Technological structures
Works and structures for reclamation and environmental protection
Earth works
Road barriers and protection
Special underground structural works
Demolition
Noise barrier systems for mobility infrastructures