PE/HDPE/PVC double wall corrugated pipe extrusion line adopts extruding and forming process, it has the featuresof reliable quality and high efficiency.Compared with other plastic pipe wall structure ,double wall corrugated pipe has excellent wall structure design,its low weight reach the lower production cost and improve the market competitiveness.The pipe is widely used in various field instead of concrete pipe and iron pipes,because it has excellent features such as:easy connected and accessiories installed,and quality reliable.