... , and aniaml food, food additives(soya meat)etc.Machine introduction:1.Double screw food extruder consists of feeding system,extruding system,cutting ... .Automatic lubrication system guarentee the extruder running stable.4.screw is made by special techniques,it grind-resisting,long ... steel and special craft, durable usage, high pressure, the screw life is longer. 2. Adopting the building block structure ...