pof heat shrinkage film bag is the most commonly used Heat Shrinkable Material in heat sealing packaging. Through hot air blowing, the heat shrink film with high transparency can be closely attached to the surface of the article to improve the product grade, prevent dust and moisture, and make the article show a new perfect packaging effect. Heat shrink film packaging, the operation method is simple and easy to learn, just prepare a hair dryer, which can be done well at home. If you add a sealing machine, you can make a better packaging effect.