Brass Metal Zipper Open End is a kind of zipper, which refers to the zipper whose microphone teeth are made of copper, cupronickel or aluminum material. Compared with nylon zipper and resin zipper, it is stronger and is mostly used in jeans, jackets and backpacks.
The microphone teeth of the Metal Zipper Closed/End are also electroplated and colored, so when purchasing, you must pay attention to whether the surface is evenly plated, whether there is any color flower phenomenon, and whether the zipper is smoothly pulled up and down. After the Silver Metal Zipper is closed, it is necessary to observe whether the left and right teeth are engaged with each other. Asymmetric zipper teeth will definitely affect the use of the zipper.