Junjie WANG

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Xuzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Skip-mining type wangeviry stope branch roadway filling and coal mi...
- Patent number 10,012,080
- Issue date Jul 3, 2018
- China University of Mining and Technology
- Liqiang Ma
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SKIP-MINING TYPE WANGEVIRY STOPE BRANCH ROADWAY FILLING AND COAL MI...
- Publication number 20160305245
- Publication date Oct 20, 2016
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Liqiang MA
- E21 - EARTH DRILLING MINING