Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Χαλυβουργείο ανοικτής καμίνου-el#Sense
Acciaieria Martin-it#Sense
Open-hearth steelworks-en#Sense
Atelier de four Martin-fr#Sense
S.M.-staalfabriek-nl#Sense
Open-hearth shop-en#Sense
Siemens-Martin-staalfabriek-nl#Sense
SM-Stahlwerk-de#Sense
Martin staalfabriek-nl#Sense