Lei ZHANG

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Nanchang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Automatic grinding device for weld beading on inner wall of pipelin...
- Patent number 11,396,079
- Issue date Jul 26, 2022
- NANCHANG HANGKONG UNIVERSITY
- Yuhua Chen
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
AUTOMATIC GRINDING DEVICE FOR WELD BEADING ON INNER WALL OF PIPELIN...
- Publication number 20200198087
- Publication date Jun 25, 2020
- Yuhua CHEN
- B24 - GRINDING POLISHING