Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11273483 | Threading method, rolling head, apparatus, module and production line for pipe thread, and products thereof | Jun Zhou, Yongliang Zhang, Jianming Yang | 2022-03-15 |
| 10913103 | Method, module, and apparatus for roll-processing external pipe thread, and external pipe thread production line | Jun Zhou, Yongliang Zhang, Jianming Yang | 2021-02-09 |