Characteristics and application of smoke control fan control box
December 30, 2021 09:07:40
A large amount of smoke, toxic gas and heat are produced in the process of fire, and a large amount of oxygen is consumed. Talking about its harm, especially smoke, which contains a variety of toxic substances. Even if it is non-toxic, it will suffocate and die due to lack of oxygen caused by combustion. For fire prevention, the first is to extinguish
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