What is this box on the space station for?

This box in China's space station program refers to the Cargo Cabin in the Sky and Core Module, also known as the Storage Module or the Material Module, which is an important part of the space station used for storing supplies, equipment and devices, and whose main role is to provide the space station with the ability to store and transport the required materials. This storage box has a volume of 15 cubic meters and a net load capacity of about 6.5 tons.

The storage box of the Sky and Core Module is an important part of the space station, which can be used to store various necessities such as food, water, oxygen, fuel, scientific experiment equipment, etc., to provide security for astronauts to stay in space for a long time, and to transport these materials from the ground or other satellites to the station when needed. In addition, storage containers can also be used for the transportation and unloading of spacecraft, supply ships and other payloads. During the construction and operation of the space station, the storage module of the Sky and Core Modules will play an important role.