Description
CFVCDUO组合A＆B类齐平安安装
对于在同一地点需要消防电话和残疾避难点的情况。在正常使用中，B型绿色残疾人避难点会运行和戒指，但是，如果打开门并且抬起火电话手机，则来自手机的呼叫转到控制点。
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