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Factory Price 4.5kg Co2 Fire Extinguisher - Automatic Fire Extinguisher – Minshan
Working principle: The working mechanism of an automated system is equal to a manual fire extinguisher, but the major difference is instead of squeezing the handle to operate the automatic system contains a glass bulb. The glass bulb contains heat sensitive material that expands when it gets hot. Specification: Product 4kg 6kg 9kg 12kg Fire rating 21A/113B/C 24A/183B/C 43A/233B/C 55A/233B/C Thickness 1.2mm 1.2mm 1.5mm 1.5mm Max working pressure ...