congratulations to xinglu technology for participating in the supply of shaanxi qipanguan tunnel mon
时间：2017/5/30 17:12:41 浏览：129次
the qipanguan tunnel is the longest tunnel in the boundary between shaanxi and sichuan on the xicheng passenger dedicated line. it is located in ningqiang county, hanzhong city, shaanxi province. the qipanguan tunnel was officially opened on february 3, 2016, passing through the daba mountain low and middle mountain area. the tunnel entrance is connected to the baijiagou middle bridge and the exit is connected to the mao maoshan tunnel. the qipanguan tunnel is 9.22 kilometers long.