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In the current market, a variety of food packaging bags emerge in endlessly, especially food and snacks. For ordinary people and even foodies, they may not understand why there are many types of snack packaging. In fact, in the packaging industry, they also have names according to the type of bags. Today, this article lists all the food packaging bags in life. Types and types, so you can eat with confidence!   The first type: three-side sealing bag As the name suggests, it is sealed on three sides and leaves an op... more