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21 set 1990 ano - 1990年9月21日上海重型机器厂制成国内第台大型加氢反应器锻件。

Descrição:

1990年9月21日上海重型机器厂制成国内第台大型加氢反应器锻件。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

21 set 1990 ano

Agora

~ 35 years ago

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