It is a flexible transport packaging container. It boasts advantages such as moisture-proof, dust-proof, radiation-resistant, and sturdy and safe, and has 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.

Easily transportable for bulk powdery materials, this packaging material features large capacity, light weight, and ease of loading and unloading. It is one of the common packaging materials. Its characteristics include a simple structure, light weight, foldability, minimal space when returned empty, and affordability.