Low-frequency noise is very common in daily life and industrial production. Low-frequency noise is resonant and difficult to handle; and low-frequency noise is generally transmitted in machinery and household appliances in the modern industrial era.
Read MoreQDBOSS continued to expand into new industries this year. JI Hotel used our own factory-produced flame-retardant acoustic material polyester fiber acoustic panel in the room to create a comfortable and environmentally friendly resting environment.
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