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PIR PU Foam Sandwich Panel Fire Resistant Thermal Board for Food Cold Storage. Fire Resistant Material: PIR/PUR foam offers excellent fire resistance and combustion performance. Customized Design Available: OEM and ODM services welcome with custom material and usage options. Eco-Friendly Blowing Agent: Uses traditional hydrocarbon pentane, safe for the ozone layer. Wide Application Range: Suitable for cold storage, factories, warehouses, and prefab houses. ISO and CE Certified: Products meet international standards including ISO, CE, RoHS, and SGS. Fast Response Support: Inquiries replied within 24 working hours by professional engineers.