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PU/Polyurethane/PIR/Polyisocyanate Insulated Sandwich Panel for Cold Room/Cold Storage Building, Find Details and Price about Composite PU Wall Sandwich Panel Composite PU Roof Sandwich Panel from PU/Polyurethane/PIR/Polyisocyanate Insulated Sandwich Panel for Cold Room/Cold Storage Building - Qingdao Global Span International Engineering Co., Ltd.