Chen HONGYAO

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Guilin, CN

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Patents Applicationslast 30 patents

Information Patent Application
BALLISTIC POLYCRYSTALLINE MINING TOOL AND METHOD FOR MAKING THE SAME
- Publication number 20140262541
- Publication date Sep 18, 2014
- Guilin Color Engineered Diamond Technology (EDT) Co., LTD
- Navin Chandra PARSANA
- E21 - EARTH DRILLING MINING