Material:PE Specification:12-20mm Length:500m/roll Thickness:0.5-1.2mm Standard:ISO thickness:0.5-1.2 rated working pressure:0.1Mpa each roll length:500 color:black diameter:12mm, 16mm, 20mm water flow rate:2-4L/H feature:anti-blocking, anti-corrosion, anti-UV application:water-saving farmland, greenhouse, garden material:PE max.paving length:300M Show More