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oct 29, 1978 - 1978年10月29日上海异型钢管厂试制成功不锈钢外螺纹驱动软管，填补国家空白。

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1978年10月29日上海异型钢管厂试制成功不锈钢外螺纹驱动软管，填补国家空白。

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工业大事年表

2 Sep 2023

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Date:

oct 29, 1978

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~ 46 years ago

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