Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Paluuvirtauksen estoventtiili-fi#Sense
Back flow check valve-en#Sense
Tilbagestrømsventil-da#Sense
Backventil-sv#Sense
Transferklep-nl#Sense
Clapet de transfert-fr#Sense
Βαλβίδα ελέγχου αντίστροφης ροής-el#Sense