... kinds of PVC powder extruder;2, The conical double screw extruder system has applied computer control;3,The cooling ... is enlarged, the cooling is rapid.4, The double screw extruder system can produce PVC plastic pipes, profiles, sheets, ... -voltage endurance,excllent circulation, etc. Main parameters: modelSJSZ51SJSZ55SJSZ65SJSZ80SJSZ92 Screw diameter51/10555/11065/13280/15692/188Screw speed1-401-381-381 ...