Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6821
Is Reference of Tube de refoulement en béton-fr#Sense
Rør til fortrængning-da#Sense
Betonverdrängungsrohr-de#Sense
Tubo costipatore in calcestruzzo-it#Sense
Betonnen sparingbuis-nl#Sense
Concrete pipe laid by thrust bore method-en#Sense