Grating Trench Covers, supplied with angle iron fram
Processing and Welding of Trench Grating Covers:
1. High frequency automatic welding machine is used to do welding on the hot dip galvanized gratings and covers (except end plate welding). Melting-corrosion on the based material is not allowed.
2.Material: By CNS SS400 steel or customized
3.Surface Treatment: After grating is formed, the surface is by hot dip galvanization; the thickness of galvanization is 610 g/m2.
4. End Plate Welding: