Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6816001
Is Reference of Hitzebeständige Metalle-de#Sense
Métaux réfractaires-fr#Sense
Refractory metals-en#Sense
Δύστηκτα μέταλλα-el#Sense
Hochtemperaturbeständige Metalle-de#Sense