Jiafeng ZHU

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Shaoxing, Zhejiang, CN

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Patents Applicationslast 30 patents

Information Patent Application
Connecting Pipe Assembly and Control Valve Assembly with Connecting...
- Publication number 20240392909
- Publication date Nov 28, 2024
- Zhejiang DunAn Artificial Environment Co., Ltd
- Jiafeng ZHU
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Valve Core Assembly and Reversing Valve with Valve Core Assembly
- Publication number 20230358323
- Publication date Nov 9, 2023
- Zhejiang DunAn Artificial Environment Co., Ltd
- Fei ZHANG
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...