Aluminum foil bags are also called pure aluminum bags. Aluminum foil bag packaging usually refers to aluminum plastic composite vacuum packaging bags. Such products are suitable for moisture-proof, light proof and vacuum packaging of large precision mechanical equipment, chemical raw materials and pharmaceutical intermediates. The four layer structure is mostly adopted, with good water and oxygen isolation functions.

Packaging bag refers to the bag used to pack various articles, so that the goods can be easily transported and stored in the production and circulation process. It is widely used in daily life and industrial production. The actual figures show that 80% of the used plastic bags are finally transported to the garbage dump area for treatment like ordinary garbage, and only 7% of the plastic is recycled.