... ISO9001 PVC pipe extrusion production line pvc hose garden pipe machinery/PVC pipe extrusion production ... line is composed of conical twin-screw extruder, vacuum calibration table, haul-off, cutter, stacker etc ... AC frequency conversion control device.4. The vacuum pump and motor adopt the famous brand. ... you want more details of our pvc hose machine/PVC pipe extrusion production line, please ...