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18 oct. 1974 - 1974年10月18日上海第三钢铁厂平炉车间试验成功平炉纯氧顶吹新技术

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1974年10月18日上海第三钢铁厂平炉车间试验成功平炉纯氧顶吹新技术

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工业大事年表

ByLoo Qoo
2 sept. 2023
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Date:

18 oct. 1974
Maintenaint
~ Il y a 51 ans
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