... Wall Corrugated Pipe Extrusion Machine 1. Diameter of pipe are various according to requirement 2. High output PE Double Wall Corrugated Pipe Extrusion MachineFeature ... , its weight was significantly lower than the flat-wall pipe or concrete pipe, and connection, construction convenient, the cost of a ... - 800500,600,800SJ120/33 SJ90/3310003750 PE Double Wall Corrugated Pipe Extrusion Machine