PE marijuana mylar bags are divided according to materials: PE is divided into LDPE, LLDPE and HDPE. According to the production process, it is divided into: PE flat marijuana mylar bag, ziplock marijuana mylar bag, zipper marijuana mylar bag, envelope marijuana mylar bag, punching marijuana mylar bag, handle marijuana mylar bag, zipper marijuana mylar bag, PE film. 1. The PE flat marijuana mylar bag is a relatively simple manufacturing process. After the film is blown by the machine, it is cut into marijuana mylar bags one by one on the marijuana mylar bag making machine, and the bottom is sealed. 2. The self-sealing marijuana mylar bag is made of a bone strip when the film is blown by the machine, which can be manually sealed. Unlike zipper marijuana mylar bags, these two types of marijuana mylar bags are generally easy to confuse. 3. The zipper marijuana mylar bag is a marijuana mylar bag made of PE film with 2 zipper chains (this zipper chain is separately produced). There are generally relatively wide indentations on both sides of the marijuana mylar bag, but the ziplock marijuana mylar bag does not. Ziplock marijuana mylar bags have less printing colors, while zipper marijuana mylar bags can print complex patterns. 4. The envelope marijuana mylar bag has a tongue like an envelope, and a strip of glue is pasted on the tongue, which can be folded to seal the marijuana mylar bag. General clothing is more used. There is also a courier marijuana mylar bag is actually a kind of envelope marijuana mylar bag. 5. The punching tote marijuana mylar bag is to punch a hole at the top of the flat pocket to facilitate lifting the marijuana mylar bag. 6. The handle marijuana mylar bag needs to add a plastic film strip on the top of the marijuana mylar bag to facilitate the marijuana mylar bag to be lifted. This process consumes labor and the cost is relatively high. 7. The zipper marijuana mylar bag is to install a zipper strip on the seal of the marijuana mylar bag and put a zipper cap on it. 8. PE film is a film that is not made into a marijuana mylar bag after being blown out by the machine. It is also divided into stretch film and shrink film.