It is a flexible transport packaging container. It boasts advantages such as moisture-proof, dust-proof, radiation-resistant, and sturdy and safe, with sufficient structural strength. Due to the ease of loading and unloading, as well as handling, the efficiency of loading and unloading has significantly improved, and its development has been rapid in recent years.

Ideal for shipping large quantities of loose powdery materials, it boasts a large capacity, light weight, and ease of loading and unloading. It is one of the common packaging materials. Its features include a simple structure, low self-weight, foldability, minimal space when empty, and affordable pricing.