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Understand the sound insulation capacity of wooden frames for windows. According to their own economic conditions and actual needs, generally, the higher the sound insulation capacity, the higher the price of sound insulation windows. However, the sound insulation capacity shall not be less than 30dB. If your environment is seriously polluted by noise or has high requirements for indoor environment.

You should also pay attention to the low-frequency sound insulation of doors and windows and the sound insulation of low-frequency sound insulation frequency, because the traffic noise energy is concentrated in the low-frequency, but the low-frequency sound insulation performance of doors and windows is its weak link, which will inevitably cause low-frequency sound leakage and eventually affect the sound insulation effect.

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