The Parallel Twin Screw Extruder'sbarrel and screw adopt segment type structure. According to customers' technological demands for all kinds of materials, we have improved its combination and arrangement abilities. With excellent effects of blending, plasticating and exhausting, its application is wide and interchanged.According to the property of material processing, barrels can choose 38CrMoAlA as material (processed by nitrification), or adopt alloy coating, which is with excellent grinding resistant capability. Barrels adopt aluminum molding heater and are cooled by water This line adopts direct current dynamo and controllable silicon velometer of European land (590 velometer), or alternator of frequent conversion velometer.