Yiwu DU

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Qinhuangdao, CN

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Patents Grantslast 30 patents

Information Patent Grant
Drum for simulating road surfaces
- Patent number 9,709,464
- Issue date Jul 18, 2017
- CITIC Dicastal CO., LTD.
- Chunhai Liu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
DRUM FOR SIMULATING ROAD SURFACES
- Publication number 20160231200
- Publication date Aug 11, 2016
- CITIC DICASTAL CO., LTD
- Chunhai LIU
- G01 - MEASURING TESTING