... to operation 4.multiple functions DPJ60 Small Type Feed Extruder Characteristics of the multifunctional machine:1. Mostly, grain such as ... , chickens and ducks, etc. with feed meal as raw materials. During puffing, the pellet feed is treated by amylase, its protein ... systematized , pellet fluffed up and sterilized. So the pellet feed can float onto the water surface, not sinking or spreading apart, ...