PE wrapping film (also known as stretch film) has self-adhesive properties and is a single-sided (drooling) or double-sided (blow molding) plastic film that is sticky, stretchable, and tightly wraps around the wrapped item. No heat shrinkage treatment is required during the packaging process, which is beneficial for saving energy, reducing packaging costs, facilitating container transportation, and improving logistics efficiency. The "integrated loading and unloading" method combining pallets and forklifts reduces transportation costs, while high transparency also facilitates the identification of packaged items and reduces delivery errors.