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What Does Soundproof secondary glazing Chiswick Mean?

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In noise reduction glazing, the panes of glass are divided by a layer of PVB. This is certainly meant to prevent sounds within the a thousand – 3000 Hz vary (one of the most sensitive range for human beings) obtaining through the glazing by both absorbing and reflecting the noise. https://jamesa318spk3.wikicommunications.com/user

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