Twin-Screw Plastic Extruder Machine 1.Automatic Temperature Control 2.Vacuum Gas Extrusion 3.Forced Feeding 4.ISO 9001:2000 Twin-Screw Plastic Extruder Machine (Double-Screw Extruder)SJSZ Series Twin-Screw Plastic Extruder Machine Features and Application: The series Extruders Coordinated with the appropriate moulds and auxiliary machines can directly convert thermoplastic expecialy PVC powder ...