For instance, fish farmers can use Fish Feed Crusher machine ZW-60B for grinding raw materials into very small granulars, use high-efficiency fish feed mixing machine 250 to blend feed materials evenly for ensuring high quality compound feed, use Fish Feed Extruder DGP50 to make floating feed and also adjust extrusion degree for floating time on water when extruding pellets, use Fish Feed Dryer to decrease moisture of feed down to 8%-12% for convenient storage, and eventually use Packaging