File:Siemens's direct reduction early furnace.png
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| Description |
Français : Un des premiers fours de Réduction directe inventé par Carl Wilhelm Siemens. Il consiste en deux cornues parallèle en fonte alimentant le laboratoire d'un four à réverbère. English: One of the early direct reduction furnaces invented by Carl Wilhelm Siemens. It consists in 2 cast-iron retorts ore hoppers, feeding the laboratory of an open-hearth steel-melting furnace. |
| Date | |
| Source | The metallurgy of steel, p. 283 |
| Author | Henry Marion Howe (1848-1922) |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:55, 4 October 2014 | | 550 × 415 (160 KB) | Borvan53 (talk | contribs) | User created page with UploadWizard |
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