500kg Per Hour Rigid PVC Pelletizing Line 80-156 Conical Twin Screw Extruder Zhejiang Sali Abrasive Technology Co., Ltd. Base Info Description Pre：Rigid PVC Granule Production Extruder Machine Line 300kg/H with Double Screw Next：Helix PVC Spiral Suction Hose Tube Pipe Extrusion Machine Line Equipment
