Tools and Machinery
| Thu 13 Aug 2026
Beijing, Aug. 13 -- State Intellectual Property Office of China has awarded a patent to Shandong Rehe Bearing Tech Co Ltd for Double-sealed Deep Groove Ball Bearing for Elevator and Escalator. Xu Yuzhen, Yao Zhenqiang, Liu Yanjun, Liu Jingzhi, Yang Yanjun, Liu Henghui, Zheng Lianjun, Lu Mingming, Wang Xia and Li Rujiang develope..