... /sm--230g/sm thinkness: 2-20mm size:4'x8,5'X10' paper ps foam board paper Size:A4, 580x880mm,700x1000mm ,1220x2440mm 920 x2440mm ... , Light-weight.2. sound insulation, heat insulation .3. weather proof.4. easy to clean and maintain. Application:1. Advertisement: exhibition & display ... .3. Finishing Material decorative sheets, storage racks, room segments, etc paper ps foam board ...