• Sandwich type panel structure, the middle of flame retardant and heat insulation and noise reduction material, has the fire performance of A0 class.

    三明治夹层式面板结构,中间加阻燃隔热降噪材料,具有A 0级防火性能。

    youdao

  • Sandwich type panel structure, the middle of flame retardant and heat insulation and noise reduction material, has the fire performance of A0 class.

    三明治夹层式面板结构,中间加阻燃隔热降噪材料,具有A 0级防火性能。

    youdao

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