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oct 18, 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

2 Sep 2023

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oct 18, 1974

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~ 51 years ago

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