Qifa Sun

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Hebei, CN

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Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR STRIPPING ENCAPSULATION LAYER OF STEEL PIPE
- Publication number 20240359352
- Publication date Oct 31, 2024
- SHINDA (TANGSHAN) CREATIVE OIL&GAS EQUIPMENT CO. LTD.
- Jianliang DUAN
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Equipment for Stripping Package
- Publication number 20240204469
- Publication date Jun 20, 2024
- Shinda (Tangshan) Creative Oil&Gas Equipment Co., Ltd.
- Qifa Sun
- H01 - BASIC ELECTRIC ELEMENTS