Unverified80% confidenceDecision RuleTime unknown
选外挂锁前需测量拉链头孔径与锁梁匹配度：普通双拉链头孔约需锁梁能穿过两个拉链孔（间距通常20-40mm），选锁梁开口宽度≥40mm的长梁款才能同时锁住两个拉链头
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