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mar 14, 1981 - 1981年3月14日上海第二钢铁厂与北京钢铁设计研究总院等单位联合设计研制的中国第一台45度高速线材轧机在上海通过鉴定。

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1981年3月14日上海第二钢铁厂与北京钢铁设计研究总院等单位联合设计研制的中国第一台45度高速线材轧机在上海通过鉴定。

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工业大事年表

2 Sep 2023

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Date:

mar 14, 1981

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~ 44 years ago

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