... 3, for pe 80 from 63mm to 710mm; 4, with pn0.4mpa, 0.6mpa, 0.8mpa...1.6mpa 1 ... .25Mpa,1.60Mpa5.black,blue or other colours on request6.Connection:socket fusion joint,butt fusion joint, ... :no heavy metal additives,would not be covered with dirt or contaminated by bacterium2.Corrosion Resistant:resist ... than 50 years under proper use6.Recycled and Environment-friendly 150mm hdpe pipe with pe 100 and pe 80