Sealing, cutting and packaging, followed by reheating and shrinking, is one of the more advanced and commonly used packaging methods in the market. It uses shrink film to wrap around the product or packaging, and after heating and sealing, the shrink film shrinks and wraps tightly around the product or packaging, fully displaying the appearance of the item, improving the product's exhibition and sales performance, and increasing its beauty and value. At the same time, the packaged items can be sealed, moisture-proof, and pollution proof, and protect the goods from external impacts, with a certain degree of cushioning, especially when packaging fragile items, it can prevent the containers from shattering and scattering. In addition, it can reduce the possibility of the product being dismantled or stolen. Suitable for heat shrink packaging of glass bottles, plastic bottles, paper cups and other containers in the food, beverage, pharmaceutical, cosmetics and other industries after being labeled with heat shrink labels on the bottle or cup body.