we would like to introduced us as professional manufacturer in five layer PE(X)-AL-PE(X )Pipe and Fittings (PAP pipe) because of the advantages and chracteristics as follows: 1. Combines the advantages of a mental and plastic pipe and eliminates the disadvantages of both materials 2.Thermal & Pressure resistant, Absolutely diffusion tight, Burning resistant, Corrosion resistant, Low thermal conductivity&heat expansion. 3. Pressure resistant and long service life. Applications: 1. Cold and hot water distribution 2. Solar system, air-conditioning & refrigeration system 3. Underfloor heating system 4. Medical, foodstuff & chemical industries pipe system 5. Gas and air distribution If you are interested in the products, contact me soon. We can produce different colors and various diameters as your required.