... and high quality 2.safe and reliable 3.international standard small dry powder fire extinguisher nozzle Class ACommon combustibles such as ... and most plastics. May occur in homes, office buildings, or business. Class BFlammable liquids such as gasoline, kerosene, oil, grease, ... motors, wiring, and appliances; requires a non-conductive extinguishing agent. small dry powder fire extinguisher nozzle