Metal zipper have these types: No.3, No.3.5, No.4, No.5, No.8, No.10. Metal zipper close end is usually used for jeans, trousers, pants, cloth pocket, wallet, luggage, bags, shoes and so on.
Compared with nylon and resin zipper, metal zipper is more solid, strong and durable, so it is used for high-end products. Metal zipper teeth have ordinary teeth, and Y teeth. Teeth colors including brass, antique brass, black nickel, nickel brass, antique silver, shiny gold, shiny light gold, shiny rose gold, shiny nickel, shiny black nickel, etc.
The production process: tape-making the teeth, gapping and washing-making bottom stop-putting the slider-making top stop-cutting-checking and packing.
Metal Zipper, there are some washing after sewing in clothes, pants , each kind of washing method of zipper quality requirements are not the same, if there are special requirements, before the order to explain. In the washing process, can pack the slider, puller,teeth to avoid mechanical friction color fade, while washing to close the zipper completely,to prevent the side teeth dropping out due to stress, if there are chemical residues, be sure to wash clean.