Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10265746 | Rotary extrusion producing method for producing inner ring rib with large aspect ratio formed of hollow billet | Zhimin Zhang, Jianmin Yu, Qiang Wang, Guojun Li | 2019-04-23 |