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30 set 1983 ano - 1983年9月30日上海电缆厂试制成功第一根国产10800路中同轴电缆。

Descrição:

1983年9月30日上海电缆厂试制成功第一根国产10800路中同轴电缆。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

30 set 1983 ano

Agora

~ 42 years ago

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