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14 ottob 1971 anni - 1971年10月14日上海机床厂自行设计制造成功具有国际先进水平的中国第一台 S7450大型精密螺纹磨床。

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1971年10月14日上海机床厂自行设计制造成功具有国际先进水平的中国第一台 S7450大型精密螺纹磨床。

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工业大事年表

2 set 2023

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Data:

14 ottob 1971 anni

Adesso

~ 54 years ago

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