Huaizhong Wang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
500 MPA grade longitudinally-welded steel pipe with low yield ratio...
- Patent number 9,663,840
- Issue date May 30, 2017
- Baoshan Iron & Steel Co., Ltd.
- Qingchao Tian
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
500 MPa GRADE LONGITUDINALLY WELDED STEEL PIPE WITH LOW YIELD RATIO...
- Publication number 20150361518
- Publication date Dec 17, 2015
- Baoshan Iron & Steel Co., Ltd
- Qingchao Tian
- C21 - METALLURGY OF IRON