roads drainage Grating

roads drainage Grating Product superiority: 1----Anti-theft 2----Load-bearing great 3----Corrosion resistant Use: Drainage ductile iron grating are mainly used for drainage of municipal roads and general roads, factory drainage, basement drainage, general building drainage facilities and inspection well facilities. Advantage: The tensile strength and pressure resistance of the ductile iron grating are good. Compared with the resin composite material and the cement material,