composite material Manhole covers

タイトルまたは説明

1.Nice appearance
Composite resin color covers are present in the material inside is not a simple diagram on the surface, the color persistence
2. High strength
its strength is ten times as rigid PVC, much higher than the absolute strength of aluminum to achieve the level of ordinary steel;
3. Corrosion-resistant
it stainless, no mold, no rot, no paint, the ability of many gas, corrosive liquid medium;
4.The overall economic good
with more than ordinary carbon steel, composite material covers integrated, low cost, although its one-time investment than ordinary carbon steel, because of its long life, and can be used two decades, and no maintenance, thus The overall economic efficiency is much better than using carbon steel;
5.Easy installation
 the covers makes use of composite materials greatly reduce the weight of components, thus reducing the weight of the support structure, installation does not require use of lifting equipment, which saves and convenient.
6.Safety and security:
covers the installation and use of composite materials, the process will not crash and have a spark, especially for use in explosive environments, in addition, the covers with non-slip surface to prevent sliding down to reduce accidents.