Faqiang SU

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Jiaozuo, CN

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Patents Grantslast 30 patents

Information Patent Grant
Liquid injection type reamer bit
- Patent number 10,914,122
- Issue date Feb 9, 2021
- HENAN POLYTECHNIC UNIVERSITY
- Hua Nan
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SHALLOW-BURIED LEAKAGE-PROOF PIPELINE AND METHOD FOR OPERATING SAME
- Publication number 20220268659
- Publication date Aug 25, 2022
- Henan Polytechnic University
- Hua NAN
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Application
LIQUID INJECTION TYPE REAMER BIT
- Publication number 20200362641
- Publication date Nov 19, 2020
- Henan Polytechnic University
- Hua NAN
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR