Film extruder,film blowing,film extrusion,film machine,plastic extruder,film making machine,pe,opp film blowing machine IntroductionFilm extruder,film blowing,film extrusion,film machine,plastic extruder,film making machine,pe,opp film blowing machineCharacteristicsBoth ... hardness and corrosion resistance.Scientifically designed,this machine set has two heads for one extruder with such advantages ...