The Bessemer converter was the first inexpensive industrial machine for the mass-production of steel from molten pig iron. It was named after Henry Bessemer who took out the patent in 1851 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / New York Public Library |
Taille de l’image : | 3522 px × 2496 px |
Model Release : | Non requis |
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