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| Keywords: Knudsen basic converter.png Sulitjelma Il est revêtu de réfractaire basique briques magnésiennes et il précède le convertisseur Peirce-Smith Sulitjelma Sweden It is lined with basic refractory materials magnesite bricks and it precedes the Peirce-Smith converter 1914 https //archive org/details/cu31924004606608 Metallurgy of copper p 197 Heinrich Oscar Hofman 1852-1924 other versions PD-old-70-1923 Uploaded with UploadWizard Peirce-Smith converters | ||||
