Fire Equipment ,It is usualiy installed inside the buildings,and the sprinkler is compoesd of sprinkler frame,sealant and glass buld.It is to be installed in the protective district via ductwork,acting as a fire detector and auto spreyer.In case of fire inside the protective district,the atmosphere temoerature rises up and the lipuid inside the glass buld expands after being heated and explodes after reaching the operating of the glass ball.The sealant drops and the sprinkler spraya to the protective district for tife extinguishments subject to the preset shape of spraying.

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