... .Light Weight 4.ISO9001:2000 ISO14001:2004 polyurethane/PU sandwich panel for cold storageFeatures:1. Heat and sound insulation. Temperature suitable ... Application:Steel house, suburban housing, villa, kindergarten, model house for apartment, commercial building, remodeling of old structures, warehouse, steel ... Burning Height)≤15≤250Deimension stability ≤1%≤4%ASTM pu sandwich panel for refrigerator