PP-R aluminum plastic composite pipe is a five layer structure, with the middle layer of thin aluminum layer, the outer layer of PP-R, the inner layer is PE or PP-R. The layers between use imported hot melt adhesive and are extruded under high pressure and high temperature. The five layers are multi-organically composed with excellent features of corrosion resistance, light weight, high mechanical strength, heat resistance, not fouling and long service life. Name: PP-R aluminum-plastic pipes Size: 20?.0 25?.3 32?.0 40?.0 50?.6 63?.1 75?.5