The most obvious sign is the date of production on the plastic seal of the barrel mouth. This number is engraved by laser or thermal coding machine, which is obvious to the naked eye and touch.
Since the Ice Age came out, it advocated healthy drinking water for all people, put forward the health concept of using water according to quality, and launched a series of healthy drinking water promotion activities, so that consumers can enjoy the health brought by natural mineral water with peace of mind and better meet the growing needs of consumers for a better life.