This production line adopts double-screw foam sheet extrusion technology. PSP foam sheet is a kind of new-type packing aterial with the features of heat preservation,safety,sanitation and good plasticity. It's mainly used to make various types of food container, such as lunch boxes,dinner trays,bowls etc by thermal forming. It's also can be used to make advertisement boards,industrial products packing and so on. It has stable performance,big capacity,high automation and high quality products.