SHANGHAI TAN ZE ENVIRONMENTAL SECIENCE&TECHNOLOGY CO.,LTO -

SHANGHAI TAN ZE ENVIRONMENTAL SECIENCE&TECHNOLOGY CO.,LTO

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industrial sound insulation door
Specification: Sound insulation quantity 25-45dB (A)
Detail: Industrial soundproof door for steel doors, double structure, the door body filling intermediate absorber, surface with sound-absorbing material, door frame adopts steel structure, rubber bands. Sound insulation effect is obvi...


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