... including 3,5,7,9-layers dryers 2. for puffed snacks,modified starch,pet food, nutritional powder etc. The electric dryer is ... used for drying all kinds of inflating snack food,the user can choose different types of ... -layer,5-layer,7-layer electric,fuel/natural gas dryer for snacks,pet food etc.by chinese ealirest,leading supplier since 1988