Unverified82% confidenceDecision RuleTime unknown
弹簧式（一拉即停）卷帘手感轻便但故障率高于链条式，尤其宽度超过1.5m或面料较重（如全遮光复合款）时弹簧易失力、回卷不到位，大窗户和重面料优先选珠链或电动
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82%
Confidence
Long-term
Relevance
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