... plastic Pipe Extrusion line 1, modulars extruder concept 2, unique design die-head 3, super efficient water cooling PPR plastic Pipe Extrusion lineSanitary ... thermal conductivity is only 0.5% of metal pipe, low drag index;Easy melting connection by special ... and corrosive liquid, etc. Used as condenser pipe in aircondition system; Agriculture irrigation; Heat supply system, water under 70oCas medium; ...