Composite rectangular manhole cover I.Light weight 2.High strength 3.Nice appearance 4.Anti-theft Composite rectangular manhole coverproductmodelmaterialcolorapplicationrectangular manhole cover860x470mmcmposite resinanyfor motorized vehicles, municipal pipelines, communications, power, water supply, Green belt area and other projectsComposite rectangular manhole cover 1.Nice appearanceComposite ...