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Why Composite Manhole Covers Are Representative of The Construction

{dede:global.cfg_gsname/} | Updated: 2019-12-18 02:52:00
Composite materials have emerged as early as the 1970s. Whether it is automotive manufacturing materials, aerospace materials, or building materials industries, the development and use of composite materials are inseparable. Nowadays the composite materials industries are facing a new period of great development, such as large-scale municipal construction, new energy use and large-scale development in the process of urbanization, the introduction of environmental protection policies, the development of the automotive industry, Railway construction, large aircraft projects, etc. 
As one of the most widely used manhole covers in the field of building materials, what are its characteristics?
1. The material has no secondary use value and has natural anti-theft characteristics, which solves the problem that the cast iron manhole cover is always stolen.
2. high bearing capacity, strong toughness, good resilience, can bear 50-100 tons.
3. Long service life, large intermolecular density, stable structure and strong resistance to destruction.
4. good sealing performance, can be designed on the manhole cover or base sealing rubber strips to prevent rain leakage, but also reduce the passing noise.
5. The material is resistant to acid and alkali corrosion, high and low temperature, antistatic, and good insulation.
6. using a special anti-skid panel pattern design, stainless steel anti-theft nut lock to ensure pedestrian safety and safety of well facilities.
The research, development, and promotion of composite manhole covers are designed to make up for the bulkiness of cement manhole covers and the shortcomings of cast iron manhole covers, and to become a representative of new manhole covers.
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