The sandwich panels used for large industrial plants, warehouses, stadiums, supermarkets, hospitals, cold storage, activity room, building additional layers, clean shop and the required thermal insulation fire place. Sandwich panels, beautiful appearance, bright color, the overall effect of the set of load-bearing thermal insulation, fireproof, waterproof one, and without re-decoration, is a widely used, especially in temporary facilities for construction sites, such as office, warehouse , fences, etc., but also reflects the civilization of the modern construction site construction, especially in the quick installation into use, can be mounted removable material turnover reuse index, has a distinct advantage, a more significant reduction of the construction site temporary facility costs , will be indispensable for the new lightweight construction materials.