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- Frequency (Hz)/Sound Isolation Value (dB)/Standard Deviation (dB)
- NRR Value
- TRUSCO Part Number
- No thong
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2 Customer Reviews
The reviews are automatic translation.
Worker's speech inside the factory · For machine noise
On 2014-08-06 14:55:03
I think that it is easier to insert and remove it than the type without core and it is also excellent for blocking sound. After a while, you can not hear people's talking much.
When using a chain saw, a grass cutter
On 2013-04-21 21:02:53
It is easier to use than a type that crushes and pushes it. It is hard to hurt even in my ears. If you put it firmly, noise can be reduced considerably. NRR 30 is not set.
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