SJSZ Series Conical Twin-screw Extruder Only used in plasticizing, extruding and forming of PVC pipes, plates, sheets, film. SJSZ Series Conical Twin-screw Extruder SJSZ series conical twin screw stem extruder is composed of barrel screw, gear transmission system, measurable feeding, vacuum deaerating, heating, cooling and electronic control components etc. It is mainly used in plasticizing, ...