Bessemer process. First inexpensive industrial process for the mass-production of steel from molten pig iron to the open hearth furnace. Deutsches Museum. Munich. Germany.
Bessemer process. First inexpensive industrial process for the mass-production of steel from molten pig iron to the open hearth furnace. Deutsches Museum. Munich. Germany.
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Taille de l'image: 2832 × 4256 px | 34.5 MB
Taille d'impression: 24.0 × 36.0 cm | 1115.0 × 1675.6 in (300 dpi)