... in manufacturing PP, HIPS, GPPS, PE plastic sheet products. The machine mainly uses in manufacturing PP, HIPS, GPPS, PE plastic products ... .The screw of the extrusion machine uses big ratio of length and diameter, its formed effect ... equal and the running speed is same.ModelRY-SP-90-800RY-SP-105-800 RY-SP-110-800Available MaterialPP,HIPS,GPPS,PEPP,HIPS,GPPS ...