Qingdao Changjie Machine Company empolders HDPE/MDPE water supply and burnning gas pipe production line, it has a special configuration, high automation, easy operation, series production, stable and credibility. The pipe of this production has a suitable rigidity, intension, nicer flexible, resist elminth, resist raze capability, nicer heat melting oined capability, it becomes the first choose production in the city burnning gas pipage and service pipe in outdoors. Composing: This production line is consist of control system, extruder, die head, calibrating cooling system, haul ff, planet cutting device and stacker. Every production line has two extruders, one of these adopts enforcement transportation sleeve and high efficiency screw, and the other smaller extruder is used for extrusion mark line.