Fire type

1) Common fire (Class A): all fires caused by solid substances such as wood, paper, cotton, cloth and plastic. (2) Oil fires (Class B): all fires caused by self-igniting liquids and solid grease objects, such as gasoline, oil and kerosene. (3) Gas fire (Class C): Any fire caused by gas burning and explosion is called gas fire, such as natural gas and gas. (4) Metal fire (Class D): fire caused by potassium, sodium, magnesium, lithium and water-forbidden substances. (5) Electrical fire: Any fire caused by electrical fire is called electrical fire.