yin and yang manhole cover

Guard against theft The stuff can’t be count for recycle by our production, so it can guard against theft Production’s weight is light, using is expedience It is used by SMC high strength composite material, our production’s weight is half than the cast iron production; It is easy to transit, fixing and servicing. This material can stand up to high temperature and low temperature, corrosion resistance, and resistant to aging Raw and processed materials' capability is tranquilization. After the nation draws up a standard test to the related product about This material can stand up to high temperature and low temperature, corrosion resistance, and resistant to aging. The production’s capability measure up the criterion The load is great in effect by our production. When something impact it will be without yawp. When the motorcar and the other heavy things run over our production, there is no harsh clash. The colors plasticity is well We can prepare the colors by consumers' demands The intensity is high We use the macromolecule synthetic materials to die forming by high temperature. The carrying capacity is strong; it is accorded and exceeded the issue