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12 jul 1975 ano - 1975年7月12日上海新建机器厂制成直径为6.1米的大型球型贮氧容器，为发展化工、治金T业提供了条件。

Descrição:

1975年7月12日上海新建机器厂制成直径为6.1米的大型球型贮氧容器，为发展化工、治金T业提供了条件。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

12 jul 1975 ano

Agora

~ 50 years ago

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