Jingtao HAN

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Patents Grantslast 30 patents

Information Patent Grant
Hot and cold composite formed square and rectangular steel tube wit...
- Patent number 11,618,066
- Issue date Apr 4, 2023
- Sino Institute of Precise Tubes Industry (Guangzhou) Co., Ltd.
- Jingtao Han
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
HOT AND COLD COMPOSITE FORMED SQUARE AND RECTANGULAR STEEL TUBE WIT...
- Publication number 20210146414
- Publication date May 20, 2021
- Sino Research Institute of Roll Forming Industry (Caofeidian) Co., Ltd.
- Jingtao HAN
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...