red metal pipe extinguishing water concrete wall emergency fire valve shape hose tube the building safety equipment |
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| navigate by keyword : alarm background building closeup color concrete connection construction control danger department emergency engineering equipment extinguish extinguisher extinguishing factory fire head hose hydrant industrial industry line metal object old outdoor pipe pipeline piping power pressure prevention protection pump red safety security shape smoke sprinkler steel supply system technology tube valve wall water white |
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| Red metal pipe extinguishing water on concrete wall. Emergency fire valve or Y shape hose tube in the building. Safety equipment and fire alarm control system |
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