Traditional Culture Encyclopedia - Hotel accommodation - The zipper on the schoolbag fell off. How to install it?
The zipper on the schoolbag fell off. How to install it?
Then hold the protruding heads with different lengths and pull the zipper from the opposite direction. At this time, the zipper is not zipped, but the zipper head has been zipped, but the length of both sides is asymmetric. Pull it to the end in the opposite direction, hold the short end by yourself and pull it back, and the length will be adjusted.
Zipper consists of components, sliders, upper and lower blocks (front code and back code) or locking pieces. The zipper teeth are the key parts, which directly determine the lateral tensile strength of the zipper. Generally, a zipper has two belts, each belt has a row of fastener elements, and the two rows of fastener elements are staggered. The pull head clamp that chain teeth on both sides and slide through the pull piece, so that the chain teeth on both sides can be engaged or disengaged.
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