usually using four layer structure, the specific material including PETIRL/PA or PET/NYIALIPE, etc., is a packaging material with a variety of advantages, suitable for a variety of fields characteristics Aluminum foil sealing bag has the following main advantages: anti-static, vacuumable, with good water, light and oxygen insulation function, high tensile strength. Aluminum foil sealing bag is widely used in the following fields: food packaging, pharmaceutical raw materials, biological chemicals, plastic particle powder, new energy batteries and other industries packaging and transportation needs.