The 20-foot container (rated load：40 tons), 360 degrees of controllable rotation, to meet the efficient loading and unloading of bulk materials, such as iron ore powder, cinder, grain and so on.It plays an important role in metal smelting plant, railway freight yard, subway construction, granary and other sites.At the same time, it can also meet the loading and unloading operations of military equipment, such as the loading and unloading of equipment within 40 tons by clamping and rotating at 360 degrees or any Angle, so as to meet the needs of rapid and effective coordinated operations.