Printing & Publishing
| Sat 26 Sep 2026
Beijing, Sept. 26 -- State Intellectual Property Office of China has awarded a patent to Hualyu Environmental Prot Guangdong Co Ltd for Fillet Rectangular Filter Cartridge. Dai Yunfeng, Li Jiajun, Zeng Xianfu, Yu Shaoyi, Qian Dingzhao, Wen Jiefeng, Lu Yi, Zeng Yongsheng, Huang Long, Wang Jin, Qiu Wenbin, Qian Xinping and Zeng Zh..