Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Traversée en acier-fr#Sense
Stålrør-da#Sense
Zinker staal-nl#Sense
Tubatura subacque-it#Sense
Underwater steel pipe-en#Sense
Stahlsinkstück-de#Sense