The application of self-adjustable spheroidal graphite anti-burglary drainage shaft ring cover in municipal road
Chai Ju · Shanxi Architecture · 2010
The forming reason of urban drainage shaft ring cover was analyzed,the principle of self-adjustable spheroidal graphite anti-burglary drainage shaft ring cover was discussed.The advantages and construction process of self-adjustable spheroidal graphite anti-burglary drainage shaft ring cover were illustrated,it pointed out that self-adjustable spheroidal graphite anti-burglary drainage shaft ring cover put on end well ring cover rapping and fall down disease,which guaranteed pavement smoothness and vehicle running safety.