Sandwich Panel manufacturer / supplier in China, offering Australia Standard 40mm PIR Sandwich Panels External Wall Insulated Panel for Office Building ISO9001 Certificated, Waterproof Fireproof Wall Panel 50mm PU PUR PIR Wall Panels with Insulated Ceiling for Bathroom Wall, Industrial Design Polyurethane Insulation Wall Panel for House and Warehouse Fireproof with Rock Wool PIR Core Materials and so on.