[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

针扣直径应≥0.7mm,过细的针易弯折且难以穿透厚织物;针长与胸针主体重量匹配,重量>30g的胸针需双针或转轴扣结构防止下垂翻转

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85%
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Long-term
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