China Railway Engineering Equipment Group Co. Ltd.

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Zhengzhou City,Henan Province, CN

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Patents Applicationslast 30 patents

Information Patent Application
Earth Pressure Balance Shield Machine without Cutter Disk
- Publication number 20150042146
- Publication date Feb 12, 2015
- China Railway Engineering Equipment Group Co. Ltd.
- Jianbin Li
- E21 - EARTH DRILLING MINING