大思高速公路三大系统安装工程

　　中交二公局承建大兴至思南高速公路6个站（中心）、40个车道的监控、通信、收费三大系统安装工程。
　　CCCC SecondHighway Engineering Co., Ltd. has contracted to build six stations (centers)and install equipment of monitoring, communication and toll collection on 40lanes of Daxing-Sinan Expressway.