... 3.two heads for one extrude Double-head Film Blowing Machine Setbrand name: TitanApplication: FilmBlown way: Extrusion blowing moulding1. ... the best hardness and corrosion resistance.,Scientifically designed,this machine set has two heads for one extruder with such ... production capacity,saving energy,labour and workshop area,etc.use:This machine set is used for blowing Low-density polyethylene(LDPE ...