High-Speed PVC/PE/HDPE/ MPP Extrusion Line for Double Wall Corrugated Pipe Pressure water-cooling for mould blocks greatly increase the production speed; Low energy consumption help to cut production cost. Efficient vacuum system for forming perfect pipes. Mould block temperature control system helps to optimize the pipe quality both appearance and inside. Easy and quick changeover between different sizes of moulds. The complete extrusion line runs full-automatically. Corrugator and extruders are synchronously controlled. Harden treated screw and barrels for longer life span and durability. Remote Service is available. Toolings (moulds) compatible to ID180mm-1600mm extrusion line