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          另一手握住拉链头用力向前拉动,两条链齿就会顺利咬合在一起 。 闭合式拉链(被套 、防止拉链头再次滑脱 。再用钳子把小卡扣夹回顶端或用针线缝几针挡住即可。背包、

          拉链头掉了怎么自己安回去

          衣服 、把脱落的拉链头从顶端穿入该侧链齿一直拉到底部插销处,用剪刀在底部缝线处拆开 2 厘米小口)。口袋拉链)装回拉链头步骤