Aluminum alloy shutter door is no longer like the traditional rolling shutter door switch, it reduces the noise to a minimum will not cause noise problems.
铝合金卷帘门不再像传统卷帘门的开关那样，它把噪音降到了最低不会使人产生噪音的困扰。
The door and window are designed as steel fire protective door, aluminum alloy window and shutter.
门窗设计：主要有钢质防火门、铝合金窗及百叶窗。
The door and window are designed as steel fire protective door, aluminum alloy window and shutter.
主要有钢质防火门、铝合金窗及百叶窗。
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