There are two main parts on every types of zippers - the part you pull, called the "slide", and the parts on either side of the item being zipped, called the "teeth". They're made that way so they can connect (hook) and disconnect (unhook) from each other as you pull the slide up and down.
1, to find a white wax, is the candle, or the pill of the yellow, white wax can also be painted on the zipper teeth.
1. Fengwang zipper manufacturers teach you to pull on the tail of the zipper, straighten it, and pull it from the bottom up to see if it is smooth.
1, the flatness of the zipper The test method for the zipper flatness is to take a piece of finished zipper and place it on a flat platen so that it is in a natural state
Nylon zipper teeth are relatively thin and look translucent. It feels like a single plastic wire loop.