CREC4 builders finished assembling the steel cross strut for a main tower on Qinglong (Blue Dragon) River Bridge in Hefei, capital of Anhui, on July 22, marking another project milestone.

On the main tower, the steel cross strut is designed with a steel structure shaped like the "hovering of a blue dragon", and its construction was a difficult task to complete, said Chen Zihua, a publicity staffer for CREC4.

The steel cross strut weighs 46 metric tons.