automatic head fire sprinkler extinguisher white ceiling light window view selected focus |
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| navigate by keyword : alarm alert auto background building ceiling corner danger detector district electric electronic emergency equipment extinguishing fire head heat hotel house indoors interior life modern office physical pressure protect protection red residential safety sauna security sensor services sign signal smoke spray sprinkler sprinkling structure suppression symbol system technology water white window |
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| Automatic head fire sprinkler extinguisher on wooden ceiling light window view selected focus on sprinkler |
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