From the survey, it was found that the following
(1) the room DFD dyestuff in night time condition is within the area, if the power failure in the dark night time may be made to employees who are not able to see inside the room, and the exit is to be well-versed
(2) the room Elongation room because this room is a room installation, safe merger คุุม signal fire. And if there is an emergency situation may be related to the employees are not able to go to check signal control cabinet notification fire.
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