●郑西高铁项目

Zhengzhou-Xi’an High-speed railway project .

●西安局西安北站客服系统维保业务

System maintenance of Xi’an North Railway Station of Xi’an Railway Admin.

●华山北和渭南高铁维保项目

Huashan North and Weinan high-speed maintenance project

●普光专用线现场维护及安全管理项目

Site maintenance and safety management project of puguang special railway line

●中铝物流集团甘肃有限公司铁路专用线

Special railway line of Chalco Group (Gansu) Co., Ltd.

●神火集团铁路专用线

Special railway line of Shenhuo Group

●榆钢储运作业区铁路设备检修维护项目

Maintenance Project of Railway equipment in Yugang Storage and Transportation Operation area