"The new stealth covers, from the well boxes, covers composition, covers designed for square grooves. Its also be inverted trapezoidal profile, it will give the box covers and well fit more closely to improve the shortcomings of the current covers, invisible covers only four sides of the border to the exposed surface, the middle recessed covers a certain depth, the bottom of the concave curved design with ribs on the concave surface. Light Invisible covers for steel structure, the surface can be directly paving tiles. covers this structure with the surrounding environment in harmony, according to the different environments in stealth covers filled with different materials, is the same throughout the covers Ninety-five percent of the area and the surrounding environment, to achieve the purpose of stealth, can be widely used in motor vehicle lanes, highway, city sidewalks, lawns and flower beds and other ground level exit. Welcome customers come to call "