卫生易拉罐 / Health cans

Soda cans are easily contaminated during the manufacturing, the transportation and the storage of canned drinks. Many people suffer from bacteria and other hazardous chemicals that have contact with them when they are consuming the drink. If we add an additional protection layer at where the lip contacts with the can when we recycle the can, it would prevent the infection by these hazardous substances and canned drinks would be more safer and healthier.