周宗青
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Patents
兼备管片拼装与壁后注浆功能的TBM掘进装置及试验方法
2023-12-07 Hits:
Type of Patent:发明
Application Number:202111447985.9
Number of Inventors:4
Service Invention or Not:no
Application Date:2021-11-30
Publication Date:2023-11-17
Authorization Date:2023-11-17
Publication Date:2023-11-17
Application Date:2021-11-30
Authorization Date:2023-11-17
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