Medical
| Wed 28 Oct 2026
Beijing, Oct. 28 -- Chinese Patent for Comb Tooth Type Expansion Joint Auxiliary Mounting Device has been issued to Jinan Urban Construction Group and Jinan City Construction Group. This invention was developed by Wang Qingyan, Pan Chenggang, Wang Liantong, Liu Qinglin, Yin Zhenying, Zhang Di, Zeng Qiang, Liu Qi, Jing Xiangyu an..