Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6821
Is Reference of Flattened egg-shaped concrete sewer-en#Sense
Betonkanal BE;Betonkanal breites Ei-de#Sense
Canale in calcestruzzo a sezione ovoidale larga-it#Sense
Canalisation en beton du type ovoide large-fr#Sense
Betonnen riool met breed eiprofiel-nl#Sense