Golden Bridge "Grating trench, cover the sidewalk, driveway, garden or building on the ground as a ditch, pipe trenches, underground passage, air shaft, light wells, wells, etc. Check the cover. " Golden Bridge "Grating trench Usually cover the activities of the fixed frame and steel grating cover composition. according to needs, coupled with tightening body or anti-theft device. "Golden Bridge " gully grating cover benefits:
 1, the load capacity, high strength, impact resistance, easy construction, materials economy;
 2, cover and box hinged, security, safety, easy to open;
 3, the leakage area, the displacement of large;
 4, the surface hot-dip zinc processing, beautiful and durable.