1. Structures: AL/PE 2. Characters: Two sides of the packing for drug products are covered by AL/PE compound film, and the two sides also can include the aluminum foil resisting moist, all kinds of gases and lights, the PE of the inner surface can keep good heat insulation to make it own excellent air tightness, and then extend the preservative period of its contents and have some extensiveness and with standing pressure, and the most obvious trait is the performance of heat tightness at low temperature, especially applied to those drugs which can't be packed at high temperature. 3. Main applications: It can be applied to the low-density tablets, capsules, suppositories, particles and so on.