1.The channel and legs adopt hot rolling process, achieving the good ductility of the steel.
2.The adoption of automated welding process makes the welding joint uniform and full. The quality of welding joint conforms to the requirements of GB 50661-2011.
3.The design of arc structure can apply to the pre-embedment in circular utility tunnel.
4.Surface finish is hot-dip galvanization. Its coating has a good corrosion resistance performance and high hardness, conforming to related provisions of standard GB/T 13912.