[KongchangAI]
Unverified80% confidenceFactTime unknown

防水持久度与摩擦成反比:鞋面防水喷雾一般2-4周需补喷,包袋/衣物可维持1-2个月;高频摩擦部位(鞋头、袖口)失效更快,需局部补喷

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80%
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Long-term
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