sell PAP pipe

PAP pipe  is a composite  pipe  ,the outer and inner layer  are  PE(X)  or PERT ,  the middle layer is aluminum ,  among  which is  adhesive , all the layers are extruded in one step . this special  structure  is 100%  gas/oxygen  tight , and provides the pipe  the advantages of  both the plastic and metal   while  avoiding their  weaknesses .  it is sanitary , high temperature  resistance , burning resistance , corrosion  resistance and  high  pressure  resistance .  it is the most  popular  pipe  in the world  for its  good  properties. it can used for  gas system ,heating system ,plumbing system and  snow-melting  system .