1. High strength : FRP manhole cover is the high polymer synthetic material,it is based on steel skeleton,one time can be finished through high heat molding, its highest detection results can upto 54 tons, meet and exceed the People's Republic of China ministry of construction issued the latest CJ/T211-2005 standard.
2. Beautiful appearance : the surface of the manhole cover exquisite decorative pattern design, can be made into all kinds of color, it is beautify the urban environment.
3. Light weight : the weight was only about a third of cast iron products, convenient for transportation, installation, repair, greatly reduce the labor intensity.
4. Anti theft: this synthetic material recycling value, natural anti-theft;With locking structure, the realization of borehole property security.Black hole can completely eliminate the "city" accidents.
5. Strong weather resistance: the product molecular weight, chemical stability strong sex of high molecular weight materials as raw material, through scientific formula, process equipment, perfect technology can make the product in normal use - 50 ℃, + 150 ℃.
6. High precision : because the product is moulded by the high temperature, build a small joint clearance, overcome the cast iron, cement type of manhole cover such problems as "running, jumping, ring", improve the traffic capacity and driving comfort.
7. Corrosion resistance : Products by the national chemical building materials test center testing, has an obvious ability of acid and alkali resistance, corrosion resistance, anti-aging index reaches 3 above, use fixed number of year is longer than the other.