... 2000 ISO14001:2004 polyurethane/PU sandwich panel for cold storageFeatures:1. Heat and sound insulation. Temperature suitable for PU ranges from -200 centigrade ... model house for apartment, commercial building, remodeling of old structures, warehouse, steel structure house, workshop, work plant, airport, cold storage, mobile ... )≤15≤250Deimension stability ≤1%≤4%ASTM pu sandwich panel for refrigerator