Bo Chang

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Hangzhou City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Constructing method for concrete cylinder of construction steel bar...
- Patent number 9,016,025
- Issue date Apr 28, 2015
- Zhejiang Construction Engineering Group Co., Ltd
- Rui Jin
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
CONSTRUCTING METHOD FOR CONCRETE CYLINDER OF CONSTRUCTION STEEL BAR...
- Publication number 20140305070
- Publication date Oct 16, 2014
- Zhejiang Construction Engineering Group Co., Ltd.
- Rui Jin
- E04 - BUILDING