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.

Easy to transport bulk powdery materials, with large capacity, light weight, and convenient handling, it is one of the common packaging materials. It features a simple structure, light self-weight, foldability, minimal space when returned empty, and low cost.