Aluminum roller shutter was introduced into China in 1990's with the feature of sunshade, sound insulation, guard and saving energy.

铝合金卷窗在上世纪90年代引进中国，具有遮阳、隔音、防盗、美观、节能等效果。

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Aluminum roller shutter was introduced into China in 1990's with the feature of sunshade, sound insulation, guard and saving energy.

铝合金卷窗在上世纪90年代引进中国，具有遮阳、隔音、防盗、美观、节能等效果。

youdao