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URL title: 向日葵视频黄
URL paragraphs: 二十多年前， 防水透氣膜 材料已經用於汽車零部件。它不僅具有IPX7/IPX8甚至IPX9K的防水能力，還能有效解決密封內外壓差不平衡的問題，減少密封內部的冷凝。防水透氣膜具有平衡內外壓差和水
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