... ,Good Surface Treatment Specifications1.Surface Facing:Magnesium Oxide Board or Fibre Cement Board2.Core Material:EPS,XPS,PU,Rock ... Wool Etc.3.Width:900mm,1000mm,1200mm4.Application:Wall Partition,Wall Board ... panel core is Self Extinguishing Grade , and the Facing Board Fireproof , thus,Sandwich Panels have excellent Fire Resistance ability. ...