What kind of key ring will not rust?

Zinc alloy, as the name implies, is an alloy made of zinc mixed with other materials. The color of zinc alloy is close to silver, and its plasticity is very strong, so it is widely used. It is often used in keychains, badges, makeup mirrors, souvenir plates, and medals. And other metal crafts, because its products are not rusty and have good wear resistance, a product can be used for a long time, and it has always been loved by people.

Zinc alloy is like its own automatic defense system, because the combination of zinc and oxygen in the air will form a dense passivation film on the surface to prevent the air from continuing to corrode the inside of the metal, thereby achieving a protective effect. In daily life, you can see products made of zinc alloy, all kinds of metal jewelry, small commodities, and handicrafts that will not rust, and almost all are made of zinc alloy.