What is zinc made of?

In the past, the metal case of dry batteries was made of zinc. Those batteries are soft, but they are generally not used now. Because of the high cost, most of them use steel plates now.

The metal plug on the socket is not zinc, so it is impossible to use zinc, which is too expensive.

Because of the high market price of zinc, zinc plate is rarely used directly in electrical appliances, tools, daily necessities and so on. It is usually galvanized or zinc alloy. Only zinc sheet is used as a protective layer for the underwater parts of large ships, and pure zinc is only used directly in rare cases.