... film and glass) 2.application:for food,medical,chemical or cosmetic aluminum foil composite sealing material (M) major applications The composite aluminum foil ... sealing films poduced by our factory,such as polythene(PE),polypropylene(PP),polyeste(PET),polyvinyl(PVC),hot melt glue,easy film ... extra-audio current to the sensor,and the aluminum foil on the bottle mouth,under the sensor, ...