Acoustical diffuser

Firstly, construction

For its shape, please refer to the picture, fire-proofing cloth is covered on the back, painted is the facing.

Secondly, specifications:

2440mmX128mmX25mm or the others

Thirdly, application scope

Broadcast station, TV station, library, theater, opera house, hotel, meeting room, computer machine room, researching lab, factory shop, gym, school etc.