This machine set consists of vibration screen, high-speed mixer, cooling machine, plastic power feeding machine, conical screw plastic extruding machine (single-screw extruding machine), double-wall corrugate pipe forming unit, plastic pipe belling unit, stacking rack, water cooling machine and air compressor. It is mainly used for production of PVC, PE and other plastic double-wall corrugate pipes, as well as plastic single-wall corrugate pipes.