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31 out 1949 ano - 1949年10月31日全市87个工业行业的 13647家工厂，10月份开工的已有 5641家。

Descrição:

1949年10月31日全市87个工业行业的 13647家工厂，10月份开工的已有 5641家。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

31 out 1949 ano

Agora

~ 75 years ago

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