Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9919390 | Combined ring rolling method for spherical valve body | Lin Hua, Dongsheng Qian, Xiaokai Wang | 2018-03-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9919390 | Combined ring rolling method for spherical valve body | Lin Hua, Dongsheng Qian, Xiaokai Wang | 2018-03-20 |