If it is used in cold storage, it must be used in cold storage shelves. After all, low-temperature storage is strict with shelves, and ordinary shelves can't be used, so they will become very brittle and can't put things down.

It is practical in ordinary normal temperature warehouses, that is, ordinary shelves. Cold storage shelves, especially low-temperature storage shelves, require Q235D, which is several times higher than that of ordinary shelves. The processing requirements are also very high, and the cost is several times that of ordinary shelves.