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dec 13, 1986 - 1986年12月13日上海重型机床厂研制成功国内第-台带凹凸磨削功能的大型精密龙门导轨磨床，达到世界先进水平。

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1986年12月13日上海重型机床厂研制成功国内第-台带凹凸磨削功能的大型精密龙门导轨磨床，达到世界先进水平。

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工业大事年表

2 Sep 2023

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688

Date:

dec 13, 1986

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~ 38 years ago

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