The English name of the invisible zipper is "Invisible zipper", which consists of a chain element, a slider, a limit code (front and back code) or a locking member. The chain element is the key part, which directly determines the side pull strength of the zipper. Generally, the invisible zipper has two chain belts, each of which has a row of fastener elements, and the two rows of fastener elements are staggered. Invisible zippers are mainly used in down jackets, denim, leather, high-end jackets, winter clothes and so on. Compared to nylon zippers and resin zippers, it is more sturdy and costly, and is mostly used in jeans, jackets and backpacks.
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