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：2025/11/28
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A kind of open-hearth process for producing steel.
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Siemens-Martin process
The museum's blacksmithing exhibit demonstrates how the Siemens-Martin process was used to produce large steel plates in the early 20th century.
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The museum's blacksmithing exhibit demonstrates how the Siemens-Martin process was used to produce large steel plates in the early 20th century.
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English - English
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