I am from Xi 'an Anxin Side Kitchenware Engineering Co., Ltd., and the cold storage is mainly divided into high temperature (0 to 10 degree) and low temperature cold storage (MINUS 18 degree). It depends on what you mainly store. For example, if you store more meat, the cold storage will be bigger, and there are many kinds of fresh-keeping products, so the storage volume will be bigger. The equipment in the cold storage is mainly the fan of the cold storage itself and the stainless steel shelf for storing things. Regarding matters needing attention, I think the main consideration is the location of the outdoor unit to facilitate heat dissipation and observe the height of the cold storage.