Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Watertight diaphragm-en#Sense
Dichtungshaut-de#Sense
Diaframma impermeabile-it#Sense
Setto impermeabile-it#Sense
Rideau d'étanchéité-fr#Sense
Dichtungsschleier-de#Sense
Dichtungsschirm-de#Sense
Grout curtain-en#Sense
Watertight screen-en#Sense