[KongchangAI]
Unverified75% confidenceFactTime unknown

记忆棉腿枕的密度决定支撑寿命:密度40-50D的高密度记忆棉支撑久不易塌陷,低于35D的低密度棉几个月即变形失去托举力

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75%
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Long-term
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