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ASTER GS-350 鋼索式電動自然排煙窗 Automatic Smoking Ventilation Windows
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GEZE Slimchain 鋼索式電動自然排煙窗 Automatic Smoking Ventilation Windows
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自動排煙窗
上掀單軸排煙窗
上掀雙軸排煙窗