FFS heavy-duty packaging bags, with the development of industrial economy, the soft plastic packaging technology is also advancing every day in the soft plastic packaging industry. Among many packaging products, the emergence of FFS heavy packaging film is a concrete manifestation of modern packaging production technology. The FFS heavy packaging film, produced by a three-layer co extrusion blown film production line and a matching four-color printing line using new PE raw materials and high-quality additives, is specially designed for high-speed fully automatic packaging machines and is a flexible packaging product for packaging granular and powdery solid products.