zipperis based on two rows of continuously arranged chain teeth, sealing articles, this is a connecting object that can make articles close and open, zippers can be widely used on clothes, leather bags, etc.
zipper is to combine the two belts with a row of metal teeth or plastic teeth. It is used on the edge of the connected clothes or pockets that can be opened. There is a sawtooth component that can slide. The two rows of metal teeth or plastic teeth can be pulled to the interlocking position, so that the opening can be opened and closed.
judging from the operation principle of the zipper, the main function of the zipper is to connect two articles and tighten, open and close the two open objects. this function can be operated and used without damage to metal teeth or plastic teeth and sliding parts.