... ,film blowing,film extrusion,film machine,plastic extruder,film making machine,pe,opp film blowing machine IntroductionFilm extruder,film blowing,film ... the best hardness and corrosion resistance.Scientifically designed,this machine set has two heads for one extruder with such ... capacity,saving energy,labour and workshop area,etc.Use:This machine set is used for blowing Low-density polyethylene( ...