... combination Self-cleaning,transmission,compounding Tairong MachineyTwin screw extruder screw element: convenient interchangeability by agile combination ... pumps, screw changers, gearboxes, pelletizers andside feeders PRODUCT LIST(EXTRUDER) 1) WENGERX-185HEAD , SLEEVE , SCREW , SHEARLOCKMAIN ... WENGERP/C-10HEAD , SLEEVE , SCREW , SHEARLOCK High quality and Standard Twin Screw Extruder Screw Element