According to the production process of the zipper manufacturing and the different materials, the zipper is divided into three types: injection zipper (also called resin zipper), metal zipper, nylon zipper (95 version zipper standard is called "spiral zipper"). There is a fundamental difference between the performance and appearance characteristics of the three types of zippers.

The tooth chain of the metal zipper chain belt is made of metal forming wire, and is stamped at one time, and is arranged one by one on the ribs of the cloth belt.

    The tooth chain of the injection zipper (resin zipper) chain belt uses an injection mold to inject the plastic (resin) at a time through the injection molding process and is formed on the edge of the cloth belt. The fastener elements are also arranged one by one.

    The tooth chain of the nylon zipper chain belt is made of polyester monofilament, which is formed into a continuous spiral or U shape, and then stitched on the edge of the cloth belt, or it is woven with disposable and polyester yarn, and its color is generally excellent. Formed by one-time dyeing.

    In the same way, the slider structure of the three types of zippers is also quite different. Generally, it can be distinguished from the appearance, cloth seam, the height of the mouth of the slider base and the width of the cavity.