perfluorohexanone residue free

perfluorohexanone extinguishing material — Wanlin, 12-year Chinese perfluorohexanone (FK-5-1-12) fire extinguishing manufacturer, WL-PF500 (Fire Detection Tube Perfluorohexanone Fire Extinguishing Device) NFPA 2001/ISO 14520/EN 15004 certified. Direct Detection Tube + FK-5-1-12 Agent + Linear Heat Detection + Pneumatic Activation + No External. OEM/ODM, fact···