... , distributing part, extruding system parts, dosing part, barrel cooling parts, constant temperature oil tank part, vacuum exhausting part ... 1) The machine barrel: 38CrMoAla alloy steel, radiator wind cooling, nitriding(2) The screw:38CrMoAla alloy steel, nitriding, oil ... barrel heating total power: 36kw(11)Machine barrel cooling way: wind cooling(0.37KW×4SETS)(12)Machine barrel exhausting way: ...