Title : 一种先柔后刚的锁脚锚杆组合支护装置及安装方法
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Title:一种先柔后刚的锁脚锚杆组合支护装置及安装方法
Affilication of Author(s):岩土与结构工程研究中心
Patent Applicant:liliping,shishaoshuai,Zhou Zongqing,zhangqianqing
Type of Patent:发明
Application Number:201611207470.0
Number of Inventors:4
Service Invention or Not:no
Application Date:2016-12-23
Publication Date:2019-04-30
Authorization Date:2019-04-30
The Last Update Time : ..