... use: This machine set is used for blowing Low-density polyethylene (LDPE) and high- density polyethyene (HDPE) plastic film to make ... best hardness and corrosion resistance.,Scientifically designed, this machine set has two heads for one extruder with such ... .Output 40kg/h55Kg/h70Kg/hMax.Folding width of Film 550mm x 2 650mm x 2 750mm x ... x 2600 x 3400mm SJ55,60,65 Double-head Film Blowing Machine Set