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6 Jan 1960 Jahr - 1960年1 月6日上海电焊机厂试制成功重达15吨的MR-500 钢轨对焊机,性能符合设计要求。
Beschreibung:
1960年1 月6日上海电焊机厂试制成功重达15吨的MR-500 钢轨对焊机,性能符合设计要求。
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工业大事年表
By
Loo Qoo
2 Sep 2023
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0
686
Datum:
6 Jan 1960 Jahr
Jetzt
~ 65 years ago
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