... quality AL material which is gracious in apperance and durable for use.2.Performance:good moisture,oxgen &light barrier,perfect ... Water-proof, oil-resistance, anti-corrosion, environmental friendly. 7. Suitable for packaging spice, tea cosmetics, seeds, tea, food ect. 8. packing details ... in making Foil ziplock bag, and the bags we made for our customer are expand their market. And most appreciating ...