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Fire detection
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Fire fighting transf···
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Gas fire extinguishi···
Electrical fire
Smoke cleaning
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Weak current enginee···
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北京長城制藥廠
北京麥穗酒店(昌平)
消防應急廣播的設置
作者:億杰北京消防工程公司?? 添加時間:2020-09-03 15:11:52