李长生,陈洁,王期文,任津毅,陈礼清. 一种不大于48mm厚1000MPa水电用钢板的GB-Q&T生产方法. 专利号:ZL201810213662.5
Release time:2021-10-13 Hits:
Service Invention or Not:no
Service Invention or Not:no
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