China Factory Astm A500 1*1inches*2mm Black Hollow Section Carbon Steel Rectangle/Square Metal Tube/Pipe

The Shijiazhuang-Jinan Railway Railway Bridge is 14.032 kilometers long and is a bridge across the Yellow River. It is divided into three parts: the south approach bridge, the main bridge, and the north approach bridge. The main bridge is a dual-purpose bridge for both highway and railway. The steel trusses with a blue main color look like seagulls flapping their wings. The Yellow River Railway Railway Bridge is a dual-purpose bridge for both highway and railway construction for the Shijiazhuan