26 kinds of underground geology, Jinan Metro Line 4 Qishui Spring Station excavated foundation pit in September
JPEG Webkit-Playsinline (Reporter Meng Jie, Li Qingbin Wang Xin, Intern Wang Tia...
JPEG Webkit-Playsinline (Reporter Meng Jie, Li Qingbin Wang Xin, Intern Wang Tia...