... light weight energy saving wall material taking reinforced 4.5mm calcium silicate board as face panel, cement and EPS polystyrene foam as ... weight, high intensity, thin, water&fire proof, heat preservation, sound insulation, quakeproof, low cost and space saving.EPS&Cement sandwich panel ... , Indonesia, Panama, Singapore, Canada, Lybia, Ireland and so on. SOUND INSULATION EPS&CEMENT SANDWICH PANEL