Color steel sandwich panel is a common product in the current building materials, which not only has good flame retardant and sound insulation, but also has environmental protection and high efficiency. The color steel sandwich panel is made by pressing the upper and lower metal panels and the middle polymer heat insulation inner core. The utility model has the advantages of simple installation, light weight, environmental protection and high efficiency. Moreover, the closed bubble molecular structure used in the filling system can prevent the condensation of water vapor.
