Double colors pet snacks production line Pet dog chewing food,Dog treats food takes starch as raw materials with scientific configuration and was extruded from co-extruder, it can be made into many kind of shapes such as flake,stick,twist, bone,double color or core-filling etc. This kind of food not only provide protein,fat,vitamin ,nutrition for dogs, but also satisfy the dog nature hobby. It has following features: strong teeth,clean mouth and teeth,scientific nutrition proportion and easy digest .