Rubber
| Tue 04 Aug 2026
Beijing, Aug. 4 -- State Intellectual Property Office of China has awarded a patent to Chongqing Yuanda Flue Gas Treat Franchising Co Ltd for Rubber Expansion Joint Backflow Device. Song Xiaoyong, Xiong Ke, Gao Yanlai, Qi Hemei, Zhang Tianyu, Zhang Meng, Yin Hongguo, Xu Chi, Wu Shunda and Zhang Xiao developed the invention.
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