Hits:
Title:一种变形止水器及采用该变形止水器的注浆封堵工艺
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:201210020422.6
Number of Inventors:1
Service Invention or Not:No
Application Date:2012-01-29
Publication Date:2013-11-06
Authorization Date:2013-11-06
Release Time:2019-04-15