Features and benefits: of HDPE / PP / of PVC double wall corrugated pipe is widely used. The company independent research and development of HDPE double-wall corrugated pipe production line, with a number of patented technologies. High degree of automation, stable operation, high yield. HDPE / PP using a new high-performance single-screw extruder, PVC large double-cone or double-extruder, extrusion volume. Forming machine horizontal structure, shuttle transmission, sealed water-cooled structure, vacuum forming, double-flaring can be achieved online. The entire line uses the computer man-machine contact surface control, has the very high automatic control.