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may 10, 1969 - 1969年5月10日上海第三钢铁厂试制成功中国第一台大张塑料复合钢板机组，轧出国内第一张大张塑料复合钢板。

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1969年5月10日上海第三钢铁厂试制成功中国第一台大张塑料复合钢板机组，轧出国内第一张大张塑料复合钢板。

Added to timeline:

工业大事年表

2 Sep 2023

1

0

731

Date:

may 10, 1969

Now

~ 57 years ago

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