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Keywords from Image Description:
Four de grillage de Siegen. fr Four de grillage du minerai de fer Modle utilis dans le pays de Siegen en Iron ore roasting kiln Model used in the Siegen area bnf fr image fer langFR Manuel de la mtallurgie du fer tome Adolf Ledebur PD Images from Manuel de la mtallurgie du fer Roasting kilns Uploaded with