银灰色抛光铝合金百叶帘内遮阳系数是外遮阳系数的2.15倍。
The inside Sc of silver gray polished blind is 2.15 times to its outside Sc.
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。
The door and window are designed as steel fire protective door, aluminum alloy window and shutter.
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