Compostable Film Blowing Machine Rotation HDPE Film Blowing Machine/Extrusion Rotary PE Film Extruder Blown Film Machine Characteristics:Both the cylinder and the ... the best hardness and corrosion resistance.,Scientifically designed,this machine set has two heads for one extruder with ... capacity,saving energy,labour etc.Use:This machine set is used for blowing Low-density polyethylene(LDPE)and high- ...