Metal materials with high mechanical strength, firmly and pressure-resistant, shatterproof, malleable, can bite, welding, bonding, with excellent moisture and air tightness, as well as easy to recycle, easy to handle, the pollution of waste plastic and paper small advantages, and therefore occupies a very important position in metals in packaging materials. Canned food as well as some of the liquid, paste, powder or food and more with this type of packaging material. Metal packaging materials are commonly used tinplate and aluminium, widely used in the manufacture of packaging for food and beverage cans. Metal packaging material easy to recycle, easy to handle, its relatively small plastic and paper waste on the environment pollution. Metal packaging materials are commonly used tinplate and aluminium, widely used in the manufacture of packaging for food and beverage cans. In recent years, metal tank of changes and development direction for: (1) improve material of strength, reduced base board thickness, can larger degree to save metal of dosage, reduced cost, and can reduce not recycling tank on environment of effect; (2) reduced tinplate of plating Tin volume; (3) to tinplate generation aluminum business tank, due to aluminum cost high, and value not stable, States have used tinplate instead of aluminum production two tablets tank for food, and beverage tank; (4) used resistance welding, achieved no lead pollution (5) use aluminum foil instead of plastic and paper due to the recycling of aluminum foil is very easy, almost no pollution to the environment, so use aluminum foil instead of plastic and paper is a good direction. Many food containers to the packaging made of aluminum foil can be used.