Security & Protection
| Mon 28 Apr 2025
Beijing, April 29 -- State Intellectual Property Office of China has awarded a patent to Wafangdian Bearing Group National Bearing Engineering Technology Research Center for pulley bearing with inner ring locking structure. Wang Ni, Wu Guangfu, Peng Shaoqian, Wu Tong, Li Gang, Liu Shibo, Jiang Jiening, Xu Shuping, Ma Shengcai, S..