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sep 21, 1990 - 1990年9月21日上海重型机器厂制成国内第台大型加氢反应器锻件。

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1990年9月21日上海重型机器厂制成国内第台大型加氢反应器锻件。

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工业大事年表

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sep 21, 1990

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~ 35 years ago

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