... ,measurable feeding,vacuum deaerating,heating,cooling and electric control components etc.Vacuum deaerating,heating,cooling and electric control components etc.It is ... mainly used in plasticizing,extruding and forming PVC pipe,plate,sheet,film,profile and granule etc.Main technical standards:ModelSJZ45SJZ51SJZ55SJZ65SJZ80SJZ92Screw diameter ...