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apr 22, 1974 - 1974年4月22日上海电缆厂制成22万伏高压申缆。
Description:
1974年4月22日上海电缆厂制成22万伏高压申缆。
Added to timeline:
工业大事年表
By
Loo Qoo
2 Sep 2023
1
0
731
Date:
apr 22, 1974
Now
~ 52 years ago
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