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1991年12月 是月 中国第一台四轴数控电火花成型机床在上海第八机床厂诞生。 (1 dez 1991 ano – 1 jan 0 ano)

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1991年12月 是月 中国第一台四轴数控电火花成型机床在上海第八机床厂诞生。

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工业大事年表

ByLoo Qoo
2 set 2023
1
0
686

Data:

1 dez 1991 ano
1 jan 0 ano
~ 0 days
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