Material characteristics of extra-large bags

Polypropylene (PP): Polypropylene is a common plastic material with high strength and wear resistance, suitable for making extra-large bags. It also has good moisture-proof, dust-proof and UV-proof properties, which can protect the quality of packaged items during transportation.
Polyester (PET): Polyester material has high transparency, high strength and good toughness, suitable for making extra-large bags. It is also non-toxic and odorless, with high safety, suitable for the packaging of food and medicines.