The use of wrapping film see here

There are not many users who may know about stretch film. In fact, it has another name, also called stretch film, which is often used in various packaging, so it also needs various types of stretch film to be used together. Let Tiansheng Xiaobian introduce 4 uses of stretch film to netizens!
1. Hermetic packaging: This type of packaging is similar to shrink film packaging, the film wraps the tray around the tray, and then two heat grippers heat seal the films at both ends together.
2. Full-width packaging: This kind of packaging requires that the film width is enough to cover the tray, and the shape of the tray is regular. Generally, the thickness of the film is 17-35 μm;
3. Manual packaging: This kind of packaging is the simplest type of wrapping film packaging. The film is mounted on a frame or by hand, and is rotated by the tray or the film is rotated around the tray. Mainly used for repackaging after the packaged pallet is damaged, and ordinary pallet packaging. This kind of packaging speed is slow, and the suitable film thickness is 15-20 μm;
4. Stretch film wrapping machine packaging: This is the most common and most extensive form of mechanical packaging. The tray rotates or the film rotates around the tray, and the film is fixed on the bracket and can move up and down. This packing capacity is very large, about 15 to 18 trays per hour. The suitable film thickness is about 15-25μm;