1.Aluminum foil materials ; 2.Stand up shape,; 3.Zipper open ,gloosy finished 4.Silvery color ,for food good packaging Asuwant Plastic Packaging Co,.Ltd Product Material PET/AL/PE Features 1.Three-side heat sealed ,gloosy finished ; 2.Stan up bag with ziplock open ,various size and thickness; 3.Aluminum foil plastic materials ; 4.Moistureproof and barrier; 5.Convenient,effect good Application ...