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Patents Grantslast 30 patents

Information Patent Grant
Cold-extrusion forming method for unsymmetrical ferrule blanks
- Patent number 11,498,103
- Issue date Nov 15, 2022
- ZHEJAING JINGLI BEARING TECHNOLOGY CO., LTD.
- Zhengli Cai
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
PRECISE AND EFFICIENT COLD-EXTENSION FORMING METHOD FOR UNSYMMETRIC...
- Publication number 20200269299
- Publication date Aug 27, 2020
- ZHEJAING JINGLI BEARING TECHNOLOGY CO., LTD.
- ZHENGLI CAI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...