Fangnian HU

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Meishan, Sichuan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Detachable double-locking riveting dismounting method and pulling r...
- Patent number 10,081,049
- Issue date Sep 25, 2018
- MEISHAN CRRC FASTENING SYSTEM CO., LTD.
- Yu Liu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Detachable Double-locking Riveting Dismounting Method and Pulling R...
- Publication number 20160325340
- Publication date Nov 10, 2016
- MEISHAN CRRC FASTENING SYSTEM CO., LTD.
- Yu LIU
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...