... become twin screw which are essential and key part of extruders for material to transmission, shearing and plasticization ... , screw changers, gearboxes, pelletizers andside feeders PRODUCT LIST(EXTRUDER) 1) WENGERX-185HEAD , SLEEVE , SCREW , SHEARLOCKMAIN SHAFT , BEARING ... AM-SEC HEAD , SCREW , MAIN SHAFT PRODUCT LIST (EXPANDER) 1) AMANDUSKAHLDE 30.2WEAR CONE , OUTLET RING , LININGPADDLE , INLET SCREW ...