First of all, the surface of aluminum naturally produces a dense layer of three oxide two aluminum film, the presence of this transparent and colorless film can prevent oxidation and can be more antirust.



Secondly, aluminum is a resource rich silver white light metal, the world's aluminum output is second only to iron and steel, its application in the metal tank packaging industry is also second only to steel, the reason why the aluminum material is used to make metal cans is to have many advantages and characteristics.



Thirdly, due to aluminum is non-toxic, so the aluminum tin cans in food safety and hygiene, not to produce metal odor of heavy metal ions and produce metal odour, tin cans of fish, meat food, due to the decomposition of the protein sulfur content in the protein will cause vulcanization to black, to be converted to aluminum tin cans packaging, it will not happen.



Fourth, the density of aluminum is very small, which is 2.78, this should not only greatly reduce the quality of tin cans, but also have little difference between the cost and the tinplate, its tensile properties are much higher than that of the tin can.



Fifth, aluminum waste recycling, convenient treatment, environmental protection, it can save energy and prevent public nuisance caused by waste, and its recovery value is much higher than that of scrap iron.