... -CE,SGS,ISO I. chicken feed pellet machine: 1. Raw materials will be pressed :The agricultural straw, grain, sorghum, maize, bean , wheat, ... to reduce mould friction, enlarge its lifetime. (3).with steam, soft materials are 1/4 more capacityWithout steam: (1). by pressing ... and bright. (2). materials without steam needs time to be soft, during pressing process, more friction between roller and die. In ...