(China First Highway Engineering Co., Ltd./Divulgação via Xinhua)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Photo by Michael Tewelde/Xinhua)

(China First Highway Engineering Co., Ltd./Divulgação via Xinhua)

(Xinhua/Li Yahui)

(China First Highway Engineering Co., Ltd./Divulgação via Xinhua)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)

(Xinhua/Li Yahui)