Yuhang Chen

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Yueqing, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation method of electrical contact material
- Patent number 10,099,286
- Issue date Oct 16, 2018
- Wenzhou Hongfeng Electrical Alloy Co., Ltd.
- Lesheng Chen
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Preparation Method of Electrical Contact Material
- Publication number 20160074935
- Publication date Mar 17, 2016
- WENZHOU HONGFENG ELECTRICAL ALLOY CO., LTD.
- Lesheng Chen
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...