[Class : 7] Machines For Shaping Extremities Of Pipes Made Of Plastic Materials, Machines For Stacking Pipes Made Of Plastic Materials In An Orderly Manner, Machines For Frilling Holes Or Producing Slits On Pipes Made Of Plastic Materials, Machines For Automatically Cutting Segments Of Pipes Made Of Plastic Materials, Machines For Bending Pipes Made Of Plastic Materials, Machines For Pulling At Controlled Speed Extruded Elements Made Of Plastic Materials, Machines For Applying Sealing Gaskets In Pipes Made Of Plastic Material, Mechanical Winders And Machines For Forming Coils With Pipes Made Of Plastic Materials, Machines For Automatically Marking Pipes Made Of Plastic Materials.