... granulation of materials such as various feedstuff for livestock,cow, horse, poultry and aquatic products, grassmeal,etc.2. Working introduction: ... HKJ250,HKJ300,HKJ350,HKJ450,HKJ610 are professional feed pellet mills. If u want to press 8mm feeds, ... ensure machine high precision and quality.3. Working efficiency:All feed machine can be with steam and without steam . difference ...