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dec 31, 1956 - 1956年12月31日新建上钢三厂投产，新增炼银能力71万吨。

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1956年12月31日新建上钢三厂投产，新增炼银能力71万吨。

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工业大事年表

2 Sep 2023

1

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731

Date:

dec 31, 1956

Now

~ 69 years ago

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