Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11110551 | Device for preheating before welding and post-welding heat treatment of tank | Yanli Song, Changlin Gao, Yipeng Peng | 2021-09-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11110551 | Device for preheating before welding and post-welding heat treatment of tank | Yanli Song, Changlin Gao, Yipeng Peng | 2021-09-07 |