Zipper bags can be divided into regular zipper bags, file zipper bags, and invisible zipper bags.Ordinary zipper bags generally have a larger body shape and are made of woven bags, transparent PE or OPP plastic films. The zipper is a regular plastic zipper and is generally used to package larger goods, such as the outer packaging of blankets and large simple luggage bagsFile zipper bag, also known as slider zipper bagThe file zipper bag can hold a large number of files, pens, and small items. Select a unique cold resistant PVC double-layer material with good flexibility.