PVC Cellular Foam Profile Extrusion Line adopts the extrusion one-step molding process to produce three-layer sandwich panels. The two sides are relatively thin surface layers, and the middle is a honeycomb structure that can be divided into single-layer or double-layer boards. The honeycomb panels can also be formed with double-sided cloth lamination and film covering at one time, featuring light weight, good rigidity, environmental friendliness, shock absorption, cold resistance, sound insulation, heat preservation, moisture-proof and insulation.