Dunnage air bagconsists of external bag and internal bag. The external bag, made of kraft paper coated with PP and PE films, is tough and firm; the internal bag is made of extruded five-layer PA-based nylon films. The one-way check valve ensures quick and convenient air inflation and deflation; the air bag is firm and airtight and can bear the pressure of more than five tons. With a simple and quick operation, the bag, which can greatly save packing time and reduce transportation costs, is used in various transport modes, such as container, shipping, trailer, and train. It can effectively protect goods in transportation, avoiding collision of goods, and playing a role in buffering, and preventing collapse. Therefore, it is especially suitable for avoiding the collapse of goods arising from tray-based and container-based transport in the tray-based, whole board-based, and bulk transportation and logistics system.P
