... pvc pipe extrusion line pvc profile extrusion line multi-layer pipe extrusion line pe pipe extrusion line pe plastic ... consists of the conical twin-screw extruder, a vacuum forming machine, a traction machine, a cutter, etc. The twin-screw extruder and ... plastic pipes,granules,profiles,film ,equipped with the vacuum forming machine,the traction machine,the cutter and the stacking frame . The conical ...