Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9662701 | Method for forming non-rectangular section ring from rectangular section ring | Zhijian WEI, Longxiang Wang, Haiyan Zhang | 2017-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9662701 | Method for forming non-rectangular section ring from rectangular section ring | Zhijian WEI, Longxiang Wang, Haiyan Zhang | 2017-05-30 |