Optional locking latches secure the connection against inadvertent release due to vibration or shock.
还有锁扣备选，可以紧固连接防止因震动而产生的开路。
EN 12209:2003 Building hardware locks and latches-Mechanically operated locks, latches and locking plates-Requirements and test methods.
建筑五金的锁及锁舌-机械锁、锁舌和锁扣板-要求和试验方法。
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