The plastic extrusion profile production line is a type of plastic machinery product. In addition to this type, there are also plastic pipe production lines, plastic sheet production lines, etc. The plastic extrusion profile production line is mainly used to produce plastic products such as plastic door and window profiles, plastic decorative panels, PVC foam profiles, etc.

The extrusion process of plastic profiles can be divided into two categories based on the forming state of co extruded materials: pre co extrusion and post co extrusion. Pre co extrusion refers to the composite molding of two materials during the incomplete molding process; Post co extrusion refers to the process of one material being fully formed and then composite formed with another material. The advantage of post co extrusion is that it can utilize waste materials and has better economic efficiency.