A metal zipper is a common type of zipper that is primarily made of metal, usually including materials such as zinc, copper or aluminum. Metal zippers are widely used in clothing, bags, tents and other items requiring high durability because of their robustness, load-bearing capacity and beautiful features. Advantages of metal zippers include: 1. ** Durability ** : Metal zippers are stronger than plastic or other types of zippers and are more suitable for heavy duty or frequently used items. 2. ** Aesthetics ** : Metal zippers can have different colors and surface treatment methods, which increases the beauty of the product. 3. ** Wide range of application ** : Due to its strength and durability, metal zippers are suitable for a variety of different applications. However, metal zippers also have some disadvantages, such as heavier weight, relatively high cost, and the possibility of corrosion in some environments. Therefore, when choosing to use metal zippers, it is necessary to decide according to the specific application scenarios and needs.