Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of General safety valve-en#Sense
Valvola di sicurezza-it#Sense
Remveiligheidsklep-nl#Sense
Válvula de segurança geral dos travões-pt#Sense
Βαλβίδα γενικής ασφάλισης-el#Sense
Hauptsicherheitsventil-de#Sense
Clapet de sécurité général-fr#Sense