Title:一种液压冲击胀管器及地下管道非开挖更换系统
Institution:机械工程学院
Type of Patent:Invent
Application Number:201811151872.2
Number of Inventors:1
Service Invention or Not:No
Application Date:2018-09-29
Publication Date:2024-01-26
Authorization Date:2024-01-26
Release Time:2019-04-15