... sheet 2. CE & ISO standard 3. Products for packing industry PS Foam Sheet Extrusion lineTechnics flow as ... sysytem, then go into No.1 Extruder---Inject foaming agent--After filter changer, material go into N0. ... ,aquatic plate,supermarket tray ,cake tray , KT board ,instant noodle bowl ,foam tray etc. It is ... widely used in the packing for food, fruit, and advertising industrial products ,etc. ...