1. High strength, excellent resistance to environmental stress cracking, and good creep resistance;
2. Good toughness, flexibility, strong adaptability to uneven foundations and dislocations, and can withstand harsh environments such as earthquakes and typhoons;
3. Has good weather resistance (including UV resistance) and long-term thermal stability;
4. Corrosion resistance, no need for anti-corrosion treatment, long service life;
5. The inner wall is smooth, the water flow resistance is small, the circulation capacity is large, and the construction cost is saved;
6. Good wear resistance and anti-wear;
7. Good low-temperature impact resistance, can be used safely in the temperature range of -20~40℃, and construction in winter will not be affected;