Features: 1.High erosion resistance 2.Desirable breakage security 3.Shock-resistance 4.Aganist theft Features: 1.Aganist theft: The compound manhole covers have no value of recycling, thus completely solving the problems caused by theft. 2.Longevity: Desirable shock-resistance;anti-bending strength; high abrasion resistance,; high erosion resistance; desirable breakage security;anti-aging properties. 3.Artistic appearance: Rich colors; smooth appearance; the color of covers can keep lasted. 4. Moderate price and light weight: Compared with cast iron ones, the weight of compound manhole cover is lighter so that it is convenient to install,transport.The price of compound manhole cover is lower than the same specification cast iron ones. 5.The load and dimension can be designed according to the requirements of customer. Packaging Detail: regular export packing or as each customer's requirement. Delivery Detail: depend on specific quantity and other matters.