... WPC celluka foam sheet extrusion line , made of conical twin screw extruder and mould , forming unit , conveyor cooling rollers , side ... for the extruderScrew inside adopt auto temperature controlling , screw and barrel adopt for special designed super –conical ... .Machine line description 300/600 mixerSJSZ-80X156conical twin screw extruder one setcelluka foam board mould one setcelluka foam board ...