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应用于涌水砂土层中注浆管封固的双层式膜袋装置及方法

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  • Disigner of the Invention:lishucai,Liu Rentai

  • Type of Patent:发明

  • Application Number:201410628235.5

  • Number of Inventors:18

  • Service Invention or Not:no

  • Application Date:2014-11-07

  • Publication Date:2016-08-24

  • Authorization Date:2014-11-07

  • Publication Date:2016-08-24

  • Application Date:2014-11-07

  • Authorization Date:2014-11-07
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