pe-al-pe pipe ,pe-al-pex pipe ,pex -al-pex pipe , size and thickness of AL: 16mm-2,18mm-2,20mm-2, 25mm-2.5,32mm-3.0 Aluminum plastic composite pipe:Five layer( PEX-adhesive agent-continuously overlapped welded aluminum-adhesive agent -PEX)For general plumping ,underfloor heating ,radiator-connection and gas applications.Packing: 100 meters or 50 meters in one roll.