Tools and Machinery
| Sat 22 Nov 2025
Beijing, Nov. 22 -- Guangdong Zhongnan Iron and Steel has applied Chinese patent for Roller Polishing Device. Zeng Ziying, Chen Ziyuan, Zha Anhong, Cai Haibin, Zhu Zhijin, Liu Zhixiong, He Pengming, Luo Weijia, Tang Yecai, Zhang Zhenjun, Sun Jianjun, Zhou Weiwen, Zhong Shao, Li Yuge and Xu Jinshun developed it.
The patent app..