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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。

Description:

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

1

0

731

Date:

oct 29, 1978

Now

~ 47 years ago

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