... 0.4mm-0.6mm3 application: widely used as roof panel and wall panel for steel structure warehouse, modular house, cold storage ... panel , please contact with me for detail information. For more information, please contact with me soon. Core materials: magnesium oxide, Polystyrene ... buildingWaterproof and damp resistant,With fireproof feature Fireproof wall panel,concrete hollow MGO wall sandwich panel