Project introduction: The project is a production and development project of COMAC C919. NCC Shenzhen provides the overall design, production, installation, commissioning and acceptance of the sound insulation room for the first phase of the engine battery test laboratory and the general contracting service for the construction of the second phase ventilation fan sound insulation room. Fully adopting American and European technical standards, the sound insulation and noise reduction index is extremely high, reaching 50dB sound insulation. The project took half a year to complete the overall acceptance and delivery, and was qualified and unanimously praised by American engineers.

 西安中航一期电池测试实验室隔音房

西安中航（二期）通风隔音房