2021/04/17 · Conical Twin Screw Extruder means two pieces conical shape work together in the barrel of extruder, it is used to produce PVC pipes, WPC profile, PVC pipes, PVC granules with different molds and down-stream machines. The conical twin-screw extruder has high pressure than single screw extruder. conical twin-screw extruder is widely used to