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简介: “十一五”工业用内衬不锈钢复合管是我国钢铁工业通过科技创新推动产业升级成效最显着的五年。五年间,我国大中型钢铁企业科技活动投入总额为2865亿元,年均科技活动投入573亿元,与2005年相比,年均增长32.5%。   王青海在会上总结道
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