File:Siemens's direct reduction rotary furnace.png
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Summary
| Description |
Français : Four de Réduction directe inventé par Carl Wilhelm Siemens, fondé sur le principe d'un tambour rotatif. English: Direct reduction furnace invented by Carl Wilhelm Siemens, based on the revolving drum (almost a rotary kiln) principle. |
| Date | |
| Source | The metallurgy of steel, p. 286 |
| Author | Henry Marion Howe (1848-1922) |
Licensing
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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. | |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:55, 3 October 2014 | | 1,219 × 1,527 (1.74 MB) | Borvan53 | User created page with UploadWizard |
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- Usage on fr.wikipedia.org
