... pe100 from 20mm to 630mm; 3, for pe 80 from 63mm to 710mm; 4, with pn0.4mpa, 0.6mpa, 0.8mpa...1 ... .Non-toxic:no heavy metal additives,would not be covered with dirt or contaminated by bacterium2.Corrosion Resistant:resist chemical matters ... under proper use6.Recycled and Environment-friendly 150mm hdpe pipe with pe 100 and pe 80