AEVIA • 운송 인프라 엔지니어링 계약자,SAINT-ORENS-DE-GAMEVILLE

NAF Rev.2 (FR 2008) : Construction of civil engineering structures (4213A)

NACE Rev.2 (EU 2008) : Construction of bridges and tunnels (4213)

ISIC 4 (WORLD) : Construction of roads and railways (4210)

NACE Rev.2.1 (EU 2025) : Construction of bridges and tunnels (4213)