Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Hittevast staal-nl#Sense
Hitzebestaendiger STahl-de#Sense
Heat-resisting steel-en#Sense
Acier résistant à la chaleur-fr#Sense
Acciaio refrattario-it#Sense