Guanfei Shi

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Yizheng, CN

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Patents Grantslast 30 patents

Information Patent Grant
Piston ring with hard plating, and preparation method therefor
- Patent number 12,345,336
- Issue date Jul 1, 2025
- Asimco Shuanghuan Piston Ring (yizheng) Co., Ltd.
- Kaishun Li
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Wear-resistant and low-friction coated piston ring and preparation...
- Patent number 12,203,553
- Issue date Jan 21, 2025
- Asimco Shuanghuan Piston Ring (yizheng) Co., Ltd.
- Weiwei Shi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
PISTON RING WITH HARD PLATING, AND PREPARATION METHOD THEREFOR
- Publication number 20250215974
- Publication date Jul 3, 2025
- Asimco Shuanghuan Piston Ring (yizheng) Co., Ltd.
- Kaishun LI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...