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Base pit soil nail support structure, has fixed nail formed with base pit wall hole, steel network fixed with groove steel units, and base plate whose middle part is formed with hole, where head part of nail is fixed with screw and bolt. 专利
申请日期: 2015-01-01, 公开日期: 2015-06-17
作者:  CHENG L FAN J HUANG Q JIA J LIU J Y
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