The device to the flour as the main raw material , the use of screw extrusion molding technology combined with the shapes of the extrusion die extrusion , and then fried, flavored salad , banana chips , pizza volume realistic shell cakes , cat ears crisp , " snail " a variety of shapes and flavors of fried pasta food , product modeling , the organization is delicate, crisp taste . Extrusion products can be fried , without drying , the production process is simple , small investment in equipment is the ideal choice for small and medium enterprises ( SMEs ) .