Class D metal fire. According to the characteristics of fire, it can be divided into six types: A, B, C, D, E and F: 1. A refers to solid material fire, which generally has the nature of organic matter and will have ash after burning. Such as wood, coal, cotton, wool, etc. 2. Class B refers to liquid fire, such as gasoline, diesel and kerosene. 3. Class C refers to gas fires, such as gas, natural gas, methane, hydrogen, etc. 4. Class D refers to metal fires, such as sodium, magnesium, potassium and aluminum magnesium alloy fires. 5...
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