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may 21, 1965 - 1965年5月21日 上海曙光机械厂试制成功高真空镀膜设备，并已成批生产，填补了中国真空设备制造的空白。
Description:
1965年5月21日 上海曙光机械厂试制成功高真空镀膜设备，并已成批生产，填补了中国真空设备制造的空白。
Added to timeline:
工业大事年表
By
Loo Qoo
2 Sep 2023
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0
731
Date:
may 21, 1965
Now
~ 61 years ago
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