Materials The materials used for metal packaging must be resistant to rust and corrosion, so it is very important. Aluminum and tinplate meet this standard, and are light in weight, durable, etc., with other good manufacturing quality. Both metals can reliably protect food from environmental factors such as bacteria, water and light. Aluminum is particularly useful because its strength acts as a barrier. Aluminum has a variety of forms from cans to boxes to protect food. A sealing strip is added in the bottle cap to make it airtight, which can further extend the shelf life of the food. Consumers like metal packaging containers because they are related to strength and durability. More and more consumers are also aware of the sustainability of aluminum, giving it a modern and clean image. According to the data of the market research company, the global metal packaging is developing rapidly, and the market will reach 141 billion dollars by 2022. At the same time, the world m…