Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Couche de base en béton-fr#Sense
Στρώση βάσης από σκυρόδεμα-el#Sense
Betonfundering-nl#Sense
Bærelag af cementbeton-da#Sense
Base de hormigón-es#Sense
Betontragschicht-de#Sense
Strato di calcestruzzo-it#Sense
Concrete roadbase-en#Sense
Camada de base em betão-pt#Sense