... motors 2.ABB DC inverter 3.SIMENS PLC system 4.280-630mm pipe size HDPE Pipe Extruding Machine, HDPE pipe extrusion ... accoriding to the customers requirements with the diameter range from 280-630mm.And the production line major parts can be adjusted ... (2 belts, 3belts,4belts,6belts,12belts)9. cutting machines10. stacker 280-630mm HDPE Pipe Extruding Machine