The tie-untie piece is either connecting pieces of press spring clip connecting piece or a nylon fibula, etc. and a zipper selects a metalzipper.
系脱件为压簧卡连接件或尼龙搭扣等任一连接件,拉线选用金属链。
3
Further, the metalzipper assembled with the 'trapezoidal shape' zipper teeth is smooth in zipping, low in zipping resistance and the like in zipping process.