Weiwei LIU

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Xi'an, ShaanXi Province, CN

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Patents Applicationslast 30 patents

Information Patent Application
TUNNEL CONSTRAINT ANCHOR CABLE AND METHOD FOR IMPROVING STABILITY O...
- Publication number 20240368991
- Publication date Nov 7, 2024
- CHANG'AN UNIVERSITY
- Jianxun CHEN
- E21 - EARTH DRILLING MINING
Information Patent Application
ECONOMICAL HIGH-STRENGTH QUICK-HARDENING GROUTING MATERIAL AND GROU...
- Publication number 20210070660
- Publication date Mar 11, 2021
- Chang'an University
- Jianxun CHEN
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES