... or Corrugated Steel Sheet2.Core Material:EPS,XPS,PU,Rock Wool Etc.3.Width:900mm,1000mm,1200mm4.Application:Wall Partition,Wall ... is Self Extinguishing Grade , and the Facing Board Fireproof , thus,Sandwich Panels have excellent Fire Resistance ability.2. The Panel also has ... core are all sound insulation , so being as wall the sandwich panel has good Noise Resistance Capacity , can insulate 30-60dB ...