The composite manhole cover is used for pedestrians walking or bicycle driving or green belt sidewalks, non-motorized vehicle lanes, and trolley parking lots. It is suitable for the drain cover installed on the side of the road. It starts from the curb stone and extends to the road within 0.5 m of the driveway. Use various motor vehicle terminals, airport runways, sidewalks where motor vehicles are prohibited from passing and parking on the airport runway, roads where motor vehicles are driven and parked, green spaces where motor vehicles are prohibited from entering the venue, bicycle lanes, sidewalks, roads where vehicles with less than 10 vehicles pass or Parking lot roads where motor vehicles pass or parking sites where small cars travel slowly, sites, residential quarters, green areas and other places where there are heavy motor vehicles driving, parking roads, site freight stations, docks and other heavy vehicles Roads, venues, airports, or highways that can be used for helicopter take-off and landing, and other roads and venues. Urban roads, highways and slow lanes of parking lots, residential quarters passages and sidewalk green belts and motor vehicles cannot drive or park. Alleys and site roads, parking lots, and all kinds of vehicles
