1、
The connecting point can be connected by buttons, slide fasteners, nylon hasps, waist belts, etc.
衔接部位可用纽扣，拉链，尼龙搭扣，腰带等方法连接。
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2、
3、
standard specification for performance of hasps and other attachment devices for padlocks or seals
扣锁或密封用搭扣和其他固定装置性能的标准规范
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