... the raw material, we can produce the core snack, core roller, inflating biscuit, crispy rice, breakfast cereal and the denaturalization starch ... . 1. Suitable model for snacks food: double-screw extruder65-III, 70-II, 85-II2.Suitable model for ... pet food:double screw 65—III,70-II,85—I3.Suitable model for ...