[KongchangAI]
Unverified80% confidenceFactTime unknown

涂层型防晒伞的防晒力会随磨损衰减,胶层出现开裂、掉皮或伞面透光即失效,一般2-3年需更换;纤维本身防晒的伞布(如原纱防晒)寿命更长

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80%
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Long-term
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