1.twin screw extruder,double screw extruder for pet food,snacks,soya protein nuggets,modified ... -500kg/h,500-800kg/h,800-1000kg/hTwin screw extruder/double screw extruder can produce various fallow foods, snacks, core-filled ... sealed charging barrel by making use of the engaged twin screws, at the same time, heating the ingredients through heating-cycles ...