Liehua Zhang

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Wuhan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Tube welding rod resistant to high stress abrasion
- Patent number 9,199,338
- Issue date Dec 1, 2015
- KINGDREAM PUBLIC LIMITED COMPANY
- Liehua Zhang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
TUBE WELDING ROD RESISTANT TO HIGH STRESS ABRASION
- Publication number 20140305922
- Publication date Oct 16, 2014
- KINGDREAM PUBLIC LIMITED COMPANY
- Liehua Zhang
- C21 - METALLURGY OF IRON
Information Patent Application
TUBE WELDING ROD RESISTANT TO LOW STRESS ABRASION
- Publication number 20140238193
- Publication date Aug 28, 2014
- KINGDREAM PUBLIC LIMITED COMPANY
- Liehua Zhang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR