PU sandwich panel -heat insulation 1)construction industry 2)easy to install and elegant appearance (1)Core Material: Rock Wool, EPS, PU; Surface Materials: Galvanized Steel sheets or Prepainted Steel sheets.(2)Wall Thickness: 40, 50, 60, 80,100,120,150,180,200,250mm(3)Max. Width: 1200mm(4)Length: according to client's demands, engineering requirements and shipment conditions (5) Application: for ...