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jun 14, 1957 - 1957年6月14日 35000伏高压电缆在上海电缆厂试制成功，通过国家鉴定。
Description:
1957年6月14日 35000伏高压电缆在上海电缆厂试制成功，通过国家鉴定。
Added to timeline:
工业大事年表
By
Loo Qoo
2 Sep 2023
1
0
731
Date:
jun 14, 1957
Now
~ 69 years ago
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