Metal & Mining
| Fri 15 Nov 2024
Beijing, Nov. 15 -- Guangdong Yudean Bohe Energy has been granted a patent for dustproof sleeve type coal crusher main shaft sealing device. This invention was developed by Chen Binyuan, Li Hui, Yu Yong, Zhang Bin, Zhang Xiujie, Liao Liangyong, Wen Yujing, Li Liangshi, Yan Bin and Tao Wangdong.
The patent application number i..