... quality is good.The machine has the devices of auto temperature controller, vacuum exhaust and circulating oil cooling of screw core. ... , extruding system parts, dosing part, barrel cooling parts, constant temperature oil tank part, vacuum exhausting part and electric controlling part ... zones: 5(10)Machine barrel heating total power: 36kw(11)Machine barrel cooling way: wind cooling(0.37KW×4SETS)(12 ...