What is an urn storage rack? Where is it used?

As the name suggests, the urn storage rack is used to store urns. It is composed of layers of grids, which are usually found in crematoriums and ashes storage areas in various cemeteries. Some elderly people have lost one of their wives, but there is still one who is still alive, so someone will temporarily store them first. After the death of their wife, they will be buried together, or buried in water, cremated, or buried in the air.