Material:PE Heat Conductivity:0.35-0.46 W/m.k Linear Expansion Coefficient:0.2 mm/m.k Outer Diameter:16-32mm Length:1000 meters Thickness:2.0 mm +/-0.3 Standard:GB/T18992-2003 Color:white guarantee period:50 years good evenness of crosslinkage:excellent thermal and pressure resistance unique memory function:outer diameter from 8-40mm Show More