The Polystyrene Foam Extrusion Plant is for the production of the PS foam mother sheet which consists of numerous closed cells and has both glossy surfaces and for the related processing for the PS foam mother sheets, which evaluates the mother sheets. The PS foam Products which come out from the Polystyrene Foam Extrusion Plant are moisture proof, rarely corroded by chemicals, excellent cushioning, insulating and thermoformable for any shape. The above properities have the PS foam products used for cushion-packaging materials, insulating materialsin in the construction field, food containers like lunch box, bowls and tray, educational goods, toys, etc.