Tu su mnogo veličine of ziplock vrećice. In the selection process, it is necessary to distinguish these ziplock bags to achieve the purpose of application. In the process of pursing ziplock bags, it can be simply divided into two categories. One is non-toxic, and due to the problem of material selection, there are also some containing Ziplock bag for hazardous substances. Safe ziplock bags are are generalno made of polietilen materijala, i polipropilen i ostalo sirovo materijali are dodano tijekom obrade. These sirovo materijali are stabilno in performanse i will not affect the human body after processing. They are safe packaging bags. There is also a ziplock bag made of vinil klorid. This ziplock bag can never be used for food, but can only be used as a general packaging bag.

Of course, accord to the size and design effect of the ziplock bag, there are also many classification standards for the ziplock bag, so it should be paid attention to the process of using the ziplock bag.