1, Long duration thanks to the apply of high technology and excellent processing technology 2, Easy ... works and etc. Ingrediants:97.5% HDPE, 2.5% of carbon black, anti-aging agent, antioxident, UV absorbers and ... resistant, low temperature resistanceSuper drainage ability and antiseepage performanceUnique functions of insulation, moisture-preserving, frost-free, anti-freezing Specifications: Thickness ...