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一种可快速退锚的全螺纹锚杆预紧力施加装置及操作方法
Release Time:2018-05-15
  • Type of Patent:
    发明
  • Application Number:
    201310598078.3
  • Number of Inventors:
    32
  • Service Invention or Not:
    No
  • Application Date:
    2013-11-21
  • Publication Date:
    2015-10-21
  • Authorization Date:
    2013-11-21
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