Mingwei Zhang

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Ningbo, CN

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Patents Grantslast 30 patents

Information Patent Grant
Equipment and method for manufacturing steel-plastic composite pipe
- Patent number 8,146,639
- Issue date Apr 3, 2012
- Mingwei Zhang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
EQUIPMENT AND METHOD FOR MANUFACTURING STEEL-PLASTIC COMPOSITE PIPE
- Publication number 20100089517
- Publication date Apr 15, 2010
- Mingwei Zhang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...