Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Siemens-Martin staal-nl#Sense
Acero martin-es#Sense
Open hearth steel-en#Sense
Acciaio affinato a suola-it#Sense
Siemens-Martin-Stahl-de#Sense
S-M stål-da#Sense
Martinstaal-nl#Sense
Siemens-Martin stål-da#Sense
Ειδικός χάλυβας τύπου MARTIN-el#Sense
Aço Martin-pt#Sense
Acier Martin-fr#Sense
SM-Stahl-de#Sense
Siemens-Martin steel-en#Sense
Martinstahl-de#Sense
Χάλυβας ΜΑRΤΙΝ-el#Sense
Acciaio Martin-it#Sense