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Door security : ウィキペディア英語版 | Door security Door security is a range of measures used to strengthen doors against door breaching, Ram-raiding and lock picking, and prevent crimes like burglary and home invasions. Door security is used in commercial and government buildings, as well as residential settings. Some facilities that build safe rooms use doors with bulletproofing in order to prevent armed robbery, mass shootings and school shootings.〔http://www.nytimes.com/2015/11/29/us/siege-highlights-security-used-in-abortion-clinics.html〕 Some industrial strengthened doors also function as fire doors that can prevent fire from spreading from one room to another for several hours. ==Security devices==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Door security」の詳細全文を読む
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