... ,2L,3L,4L,6L,9L 7> Extinguisher accessory Extinguisher cylinder,Co2 fire extinguisher cylinder, Powder, Fire escape mask, Fire blanket, Fire suit ... D). How to use-4kg dry powder fire extinguisher (stretching cylinder) Pull the Pin at the top of the extinguisher. The ... are familiar with how to use it. 2.They are best placed in the hall and taken where needed only buy ...