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Question:

Light steel keel wall with sound insulation requirements of the wall to the top?

Light steel keel wall with sound insulation requirements of the wall to the top?

Answer:

Should do the top, or else there is no sound of the sound.
For sound insulation, should be light steel keel wall to do the top - under normal circumstances, there will be this requirement, including the seal gypsum board, put noise cotton. But for the above part of the ceiling, in the work can be "lazy" Bale.

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