Release Time:2022-10-18 |
Hits:
Chen Mengjun
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Gender:Male
Education Level:Postgraduate (Doctoral)
Alma Mater:山东大学
Patents
一种浆液单向流动钻注一体钻杆及施工方法
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:202110192598.9
Number of Inventors:4
Service Invention or Not:No
Application Date:2021-02-20
Publication Date:2022-10-11
Authorization Date:2022-10-11