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31 out 1989 ano - 1989年10 月31日宝山钢铁总厂2050毫米热轧带钢轧机正式投料负荷试车成功。

Descrição:

1989年10 月31日宝山钢铁总厂2050毫米热轧带钢轧机正式投料负荷试车成功。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

31 out 1989 ano

Agora

~ 35 years ago

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