Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4826002
Is Reference of Σωλήνωση οργάνων-el#Sense
Instrument line-en#Sense
Instrumentleiding-nl#Sense
Mittarin putkijohto-fi#Sense
Tubazione strumenti-it#Sense