Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193446 | Needle-shaped cylinder liner and preparation method therefor, and coating liquid for preparing needle-shaped cylinder liner | Zhijun Liu, Zengjun DANG, Yong Wang, Qifei Hou | 2021-12-07 |