... and decorate Specifications 1. Facing Board : MgO board or Fiber Cement board or Galvanized Steel Sheet .2. Core Material :EPS , XPS , Rockwool or ... . The panel core is Self Extinguishing Grade , and the Facing Board Fireproof , so ,Sandwich Panel has excellent Fire Resistance capacity .2. ... design , so it is easy to Transport and Installed . Sandwich Board,fireproof material,pvc decorative panel