| 摘要 |
PROBLEM TO BE SOLVED: To surely and efficiently extinguish fire caused by the ignition of a frying oil or the like. SOLUTION: In a sprinkler fire-extinguishing system which is obtained by connecting a closed sprinkler head 5 to a piping 2 to discharge water by opening the closed sprinkler head, an agent part 3 filled with fire-extinguishing agent 6 for oil fire is provided between the head 5 and the piping 2.
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