Title:一种高风压潜孔钻机定向排尘降尘罩
Institution:岩土与地下工程研究院
Type of Patent:Utility models
Application Number:201420826491.0
Number of Inventors:2
Service Invention or Not:No
Application Date:2014-12-22
Publication Date:2015-07-22
Authorization Date:2015-07-22
Release Time:2019-04-15