... warm 3)environmental protection 4)high-strength,fast delivery Sandwich panelcharacteristics: 1, the quality of light weight ... used are: rock wool glass fiber, cotton, polystyrene, polyurethane, low thermal conductivity, good thermal insulation effect. 7, ... and roll forming, and has excellent structural propertiesApplications:1) sandwich panel used in large industrial plants, warehouses, supermarkets, ...