... : 16-110mm. 2.PVC pipe making machine 3.Material:PVC powder 4.Use SJSZ51/105 Plastic pipe making machine:The process flow of PVC Plastic pipe extrusion machine ... is as following: Screw feeding, high-speed mixing, Spring feeding, Double-screw Extruding, Moulding, Vacuum Finalizing-Size, Hauling, printing, Cutting, Pipe ...