Qianhan Zhuang

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Wenzhou City, CN

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Patents Applicationslast 30 patents

Information Patent Application
Trench construction device for construction sites
- Publication number 20210172148
- Publication date Jun 10, 2021
- Qianhan Zhuang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Descaling apparatus for steel tubes of the building scaffold
- Publication number 20210131126
- Publication date May 6, 2021
- Qianhan Zhuang
- E04 - BUILDING