This pipe line are mainly used to produce the five layer pex-al-pex composite pipe which is used for cold and hot water, heating in building. Pex/al/pex aluminum composite pipe production line consists of single screw extruder, vacuum calibrating water tank, water spraying tank, co-extrusion die; welding machine, haul-off machine, welding platform, cutting machine, double station winder and control system. Original creation aluminum pipe figuration system and exact aluminum pipe sitting system. That ensure welding to process welding line extended stability and aluminum pipe finished product frankly. Unique five layer co-extrusion technology ensures high and stable quality for aluminum plastic composite pipe. Advanced calibrating technology can develop the calibration quality. Ultrasonic welding machine with stable performance makes the flat weld seam and high quality.