With the improvement of the quality of life and the national advocacy, the awareness of green environmental protection has been paid more and more attention in our daily life. Tin Box is now gradually replacing the commodity packaging of paper boxes and wooden boxes. The use of iron box packaging not only reduces the consumption of wood, but also the remaining Tin Cans can be reused as storage boxes and other purposes. Recently, a friend found that the iron box he had kept at home was rusty. Now let's talk about how to prevent rust by reusing Tin Boxes. In fact, tinplate is very rust resistant in general, because in the production process of tinplate, a layer of tin will be coated on the outer layer of the tinplate to prevent contact with the air. Rust is the reason why the air contacts the iron.