Experience acquired over more than thirty years shows that silicone water repellents are a good solution, especially when treating building materials that must retain their natural appearance.

三十多年经验表明，特别是对建筑材料，要保持材料的天然外观，有机硅防水剂是一种非常好的解决办法。

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Experience acquired over more than thirty years shows that silicone water repellents are a good solution, especially when treating building materials that must retain their natural appearance.

三十多年经验表明，特别是对建筑材料，要保持材料的天然外观，有机硅防水剂是一种非常好的解决办法。

youdao