... produce double face,means a bag. Rotary Head Film Blowing Machine characteristics: The unit extruder, barrel, screw ... plastics. Applicable to the blowing high and low-density polyethylene (HDPE, LDPE) linear low density polyethylene (LLDPE), such as plastic film, widely used ... special produce full production of plastic bag, including film blowing machine, bag making machine, paper bag making machine ...