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dec 27, 1991 - 1991年12月27日上海第八机床厂与德国H·华尔特公司合作开发成功国内第一台高精度、高效率四轴数控电火花成型机床，标志着中国成型加工机床的制造技术达到国际先进水平。

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1991年12月27日上海第八机床厂与德国H·华尔特公司合作开发成功国内第一台高精度、高效率四轴数控电火花成型机床，标志着中国成型加工机床的制造技术达到国际先进水平。

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工业大事年表

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dec 27, 1991

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~ 34 years ago

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