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Title:煤矿巷道预应力鱼腹钢索组合支护结构
Institution:岩土与地下工程研究院
Type of Patent:Utility models
Application Number:201120441315.1
Number of Inventors:2
Service Invention or Not:No
Application Date:2011-11-09
Publication Date:2012-07-04
Authorization Date:2012-07-04
Release Time:2019-04-15
