... controlled, Full Automatic, Few Workers Needed, Dry Powder Filling, Valve Screwing, Nitrogen Filling for Pressurizing. Ⅰ,Brief Introduction:Fire Extinguisher Automatic Filling ... is adjustable. It mainly includes the spiral powder feeding machine driven by motor, stainless powder tank, falling and ... the precise location, lifting the fire extinguisher and press the lifting and falling button on the main ...