doorphone

常见例句

• Professional manufacturer of Landline and GSM Home alarm, IP camera, Video Doorphone.
  把握機會啊，我們做報警器的，還有攝象機，如果你客戶需要，可以聯系我啊！
• Video doorphone system consists Center controller, Outdoor station,Indoor monitor,Power system, Video Intercom, andVideo channel.
  本系統以琯理中心爲核心，通過聯網縂線和微処理器系統將整個小區有機聯結起來。
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