1> EPS sandwich panel is made of two layer color coated steel sheet and an EPS layer in the middle. 2> EPS sandwich panels are flush shapes&peak and valley shapes available. The joint connection can be teeth shape and clip shape. 1) Thickness(mm) of sandwich panel: 20, 40, 50, 75, 100, 150, 200. 2) Length of sandwich panel: Depend on the construction demand and generally it is less than 12000mm.