... production line 1.16~630mm pipe diameter 2. Metal treatment screw and barrel 3. ABB inverter, OMORN table 4. CE PVC ... ,cable laying etc.This set is composed of the conical twin-screw extruder,vacuum calibration tank,printer,haul-off,cutter,stacker, etc.The ... extruder and extractor adopt the imported AC frenquncey control device.The ...