1.Product description Advantages: 1. Saving-energy                       2. Excellent thermal insulation, good sound-proof 3. Good durability 4. High quality in Fireproof         5. Easy installation 6. Save construction space 7. Life span:50 years    Polyurethane (PUR) sandwich panel Effective width Wall-930mm/1000mm/1130mm Roof-930mm/1000mm Length According to customer request(Max length:11.8meters) Structure Upper and lower layer: color coated steel sheet Core: Polyurethane foam Thickness Color coated steel sheet: 0.42 - 0.8mm             Polyurethane foam thickness: 50 - 200mm Color RAL Standard Advantages Light in weight, hear insulation, water resisting, green and environmental Characteristics For wall of large size factory buildings, storages, exhibition halls, gymnasiums etc. sandwich panel