When purchasing a PE single-wall corrugated pipe production line, the key points to focus on are the extruder model and the number of forming modules. These two directly determine the output and the pipe diameter range. For beginners, it is recommended to choose a single screw main unit combined with a basic forming machine, as this will help achieve a faster return on investment for small-diameter high-value-added products. The control system is preferably a mature brand such as Siemens PLC. Later maintenance spare parts will be more universal. Additionally, make sure to ask about whether it includes molds, and whether the cooling method is air cooling or water cooling. The production output of water-cooling is usually higher than that of air-cooling.