Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Areia para vidro-pt#Sense
Άμμος υαλουργίας-el#Sense
Glassand-de#Sense
Areia de sílica-pt#Sense
Sable de verrerie-fr#Sense
Glass-making sand-en#Sense
Glassand-da#Sense
Lasihiekka-fi#Sense
Areia de fusão-pt#Sense
Arena para vidrio-es#Sense
Sable de fusion-fr#Sense
Schmelzsand-de#Sense
Glaszand-nl#Sense
Sabbia per vetro-it#Sense