strech film machine, double layer strech film machine, LLDPE material strech film, double layer cling film machine HN650 Single/double layer Co-extrusion Stretch Film MachineStretch film quality:1) The stretch film produced by this machine, also called as elastic film, is a kind of soft polyethylene plastic film; 2) Good transparency, elasticity and intensity;3) In case of non-heating, it can ...