Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/68
Is Reference of Knötchengraphit-de#Sense
Graphite nodulaire-fr#Sense
Temperkohle-de#Sense
Temper carbon noduler-en#Sense
Grafite nodular-pt#Sense
Nodular graphite-en#Sense