Unverified75% confidenceDecision RuleTime unknown
验证松紧带耐用性的方法:购买时用力拉伸腰头至最大后松开,观察回弹速度和有无褶皱残留;优质松紧带应快速回弹且平整,慢回弹或留有波浪褶皱说明弹力材料质量低
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75%
Confidence
Long-term
Relevance
-
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