... Two stage extruding; 2. Enviromental foam agency like H2O, CO2, or Petane; 3. High capacity. PRODUCT PROFILE:XPS heat insulation plate ... penetrability than of other kinds of heat insulation plates, XPS heat insulation plate features with high strength, low weight ... system of apartments, office buildings and workshops. XPS heat insulation plate extrusion line has two types: single screw tandem extruders ...