What's the name of the bag for the exam supplies?

Self-sealing bag refers to the packaging bag that can be sealed automatically by pressing, such as chain-clamping self-sealing bag, bone-blowing self-sealing bag and so on. Chain clip self-sealing bag, also known as dense bag, includes bone sticking bag, sealing bag, chain clip bag and keel bag. It is made of polyethylene and high-voltage polyethylene through film blowing molding and hot cutting machine bag. The common materials are multi-layer composite zipper bags.

The stationery bag is a special bag for holding stationery supplies. It is very convenient to use, more convenient to carry than the pencil case, more comfortable to hold, and more space-saving than it, so as to hold the most things in the smallest space and use more tiny space! Therefore, it is favored by students, especially female students.

Self-sealing bags can be used for internal and external packaging of various small items. Self-sealed bags made of food-grade raw materials can store all kinds of snacks, tea, seafood and so on. , moisture-proof, odor-proof, waterproof, insect-proof, and anti-scattering; Self-sealing bags can also be used to package clothes and other daily necessities, with a wide range of uses. In the process of blown film production, anti-static master batch can be added to the self-sealing bag to make the anti-static self-sealing bag.