Yafei HE

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Beijing, CN

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Patents Applicationslast 30 patents

Information Patent Application
ASYNCHRONOUS HEATING AND CALENDERING DEVICE, LARGE WIDE ULTRA-THIN...
- Publication number 20220352491
- Publication date Nov 3, 2022
- BEIJING WELION NEW ENERGY TECHNOLOGY CO., LTD
- Wenjun LI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
GRAVURE COATING DEVICE FOR PREPARING LARGE-WIDTH ULTRATHIN METAL LI...
- Publication number 20220280966
- Publication date Sep 8, 2022
- BEIJING WELION NEW ENERGY TECHNOLOGY CO., LTD
- Wenjun LI
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...