... head film blowing machine LDPE, HDPE, LLDPE film extruder Double head, double rewinder for high output CE certificate CharacteristicsBoth the cylinder and the screw ... the best hardness and corrosion resistance.,Scientifically designed,this machine set has two heads for one extruder with ... ,saving energy,labour and workshop area,etc.UseThis machine set is used for blowing Low-density polyethylene( ...