Issued Patents 2019
Showing 1–2 of 2 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, Qiang Wang, Guojun Li, Mei Cheng | 2019-04-23 |
| 10265747 | Rotary extrusion producing mold for producing inner ring rib with large aspect ratio formed of hollow billet | Zhimin Zhang, Xubin Li, Qiang Wang, Mo Meng | 2019-04-23 |