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8 déc. 1953 - 1953年12 月8日1万伏高压扇形电力电缆在上海电缆厂试制成功。

Description:

1953年12 月8日1万伏高压扇形电力电缆在上海电缆厂试制成功。

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工业大事年表

ByLoo Qoo
2 sept. 2023
1
0
688

Date:

8 déc. 1953
Maintenaint
~ Il y a 71 ans
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