Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Εγκατάσταση σωληνώσεων-el#Sense
Σωληνώσεις-el#Sense
Leidingwerk-nl#Sense
Pipe installation-en#Sense
Pipe-work-en#Sense
Installation de tuyauterie-fr#Sense
Tuberías-es#Sense
Instalação de condutas-pt#Sense
Rorinstallation-da#Sense
Rördragning-sv#Sense
Verrohrung-de#Sense
Putkisto-fi#Sense
Canalizaciones-es#Sense
Instalação de tubagem-pt#Sense