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  • Silencing ventilation window

    Silencing ventilation window

  • Secondary-soundproof window

    Secondary-soundproof window

  • High_performance_secondary_windows

    High_performance_secondary_windows

  • High efficiency soundproof window

    High efficiency soundproof window

  • Aluminium-contemporary soundproof window

    Aluminium-contemporary soundproof window

  • ADDRESS

    Kaijian Innovation Industrial Park, No. 366, Tianfeng North Road, Chengyang District, Qingdao

  • E-MAIL

    qdbarrier@126.com

  • PHONE

    +86 15253292991
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