Features: 1, Anti-fouling: polyurethane elastomer has a smooth surface, it can prevent adhesion of fouling layer. 2, Wear-resisting: polyurethane elastomer with outstanding wear resistance, abrasion value test results are generally in the range of 0.03-0.2mm3 / m , about 3-5 times of the natural rubber. 3, Anti-corrosion: polyurethane elastomer anti corrosion of acid, alkali, salt and water and other media. 4, Good low temperature resistance performance, adapt to a wide temperature range: mainly in the brittle temperature is very low and fit in the medium temperature range -50 ℃ ~ +100 ℃ 5, Light weight, easy to transport, installation and maintenance: low density polyurethane elastomer, and compared with other pipe inner diameter of the pipe can save 30% -40%.