A zipper (British English: zip fastener or zip) is a popular device for temporarily joining two edges of fabric. It is used in clothing, luggage and other bags, sporting goods, camping gear (e.g., tents and sleeping bags), and other textiles.
With the development of human social economy and science and technology, the zipper has developed from the original metal material to the non-metal material, single function, single function, multi-species and multi-species comprehensive functions, from simple construction to today's exquisite appearance, colorfulness, and after a long period of time. Evolution. Its performance, structure, and materials are changing with each passing day, and has a wide range of uses. It has penetrated into various fields such as aerospace, aviation, military, medical care, and civil use. The role of small zippers in people’s lives is increasing, and it is increasingly showing its importance. Sex and vitality.