The Principle of PVC bag waterproof function
PVC bag always used in the purpose of the waterproof.
PVC material is a kind of waterproof plastic material, and through the high frequency voltage can be PVC bag joint tightly paste together. And can achieve the waterproof effect by some special sealing way.
PVC bag is the most important is waterproof sealing bag, each different ways can do different depth of waterproof and waterproof, waterproof mainly use waterproof zipper, in order to increase the waterproof effect, and some use two waterproof zipper with folded can achieve the best effect, make the PVC bag to use more at ease.
PVC waterproof bags mainly put waterproof effect, it is only through a variety of special packaging in order to achieve the best effect, make consumers to use more at ease.