Construction
| Tue 20 Jan 2026
Beijing, Jan. 21 -- Hunan Guocong Construction Tech Co Ltd has filed a patent application for Bottom Expanding Device, Precast Pile and Precast Pile Construction Method. This invention was developed by Xiang Xianglin, Yin Xijun, Zhang Wei, Guo Guliang, Tan Guangyu, Peng Baixing, Tang Xuhe, Cao Jiao, Xiao Jie, Zhao Lei, Fu Xiang,..