具有防止或阻滞火焰蔓延性能的箱体。该箱体具备隔热、阻燃等性能，尤其针对3C电子产品一类，可将火势控制在箱内，从而保护箱外的箱体不被点燃。

A box with the ability to prevent or block the spread of flames. This box has thermal insulation, flame retardancy, and other properties, especially for 3C electronic products. It can control the fire inside the box to protect the box outside from being ignited.