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22 apr 1974 anni - 1974年4月22日上海电缆厂制成22万伏高压申缆。

Descrizione:

1974年4月22日上海电缆厂制成22万伏高压申缆。

Aggiunto al nastro di tempo:

工业大事年表

2 set 2023

1

0

686

Data:

22 apr 1974 anni

Adesso

~ 51 years ago

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