Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Отпадъчни филтруващи глини-bg#Sense
Zużyte naturalne materiały filtracyjne (np. gliny, iły)-pl#Sense
Verbrauchte Filtertone-de#Sense
Argiles de filtration usées-fr#Sense
Filtri di argilla esauriti-it#Sense
Εξαντλημένα φίλτρα αργίλου-el#Sense
Arcillas de filtración usadas-es#Sense
Brugt filterjord-da#Sense
Argilas de filtração usadas-pt#Sense
Afgewerkte bleekaarde-nl#Sense
Spent filter clays-en#Sense