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HKM-Duisburg, steel mill, steelworks Krupp Mannesmann GmbH, plant construction, blast furnace, Duisburg, Ruhr area, North Rhine-Westphalia, Germany Stock Photo - Alamy
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HKM Duisburg, Hüttenwerke Krupp Mannesmann GmbH, Gasometer site, steel, coal and steel industry, blast furnace, Duisburg, Ruhr, Nordrhein-Westfalen Stock Photo - Alamy
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