Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2841004
Is Reference of Περιτά υλικά λυμάτων-el#Sense
Material de relleno-es#Sense
Sewage decomposition material-en#Sense
Füllgut-de#Sense
Matériaux de remplissage-fr#Sense
Materiais de preenchimento-pt#Sense