Rubber
| Wed 02 Sep 2026
Beijing, Sept. 2 -- State Intellectual Property Office of China has released Baiqin Energy Tech Guangdong Co Ltd patent application for Rubber Sleeve Packer and Packer Assembly. This invention was developed by Wang Jinlong, Chen Renjin, Pang Fuzeng, Liu Jianfeng, Li Jiangping, Pang Ruijie, Li Lianghui, Lai Weihua, Liang Jinwen, ..