... 1, foam agent: CO2+Alcohol, without Freon; 2, full-automatic 3, simple operation, low faliure rate, long life ProductXPS CO2 Extrusion LineModel75 ... (PS)CertificateISO 9001: 2000Functionproduce Extruded Polystyrene (XPS) Foam Board.XPS Line-CO2 Standard configurationDescriptionExtrusion feed systemMain extrusion systemTDS75D twin screw extruderMelt adaptorTDD200R single screw ...