Huali Huang

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Shaoxing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for grinding spring with high quality and high efficiency
- Patent number 9,498,864
- Issue date Nov 22, 2016
- ZHEJIANG JIADU SPRING MACHINE CO., LTD.
- Jialin Yu
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR GRINDING SPRING WITH HIGH QUALITY AND HIGH EFFICIENCY
- Publication number 20160297047
- Publication date Oct 13, 2016
- ZHEJIANG JIADU SPRING MACHINE CO.,LTD.
- Jialin Yu
- B24 - GRINDING POLISHING