Unverified82% confidenceDecision RuleTime unknown
针织衫、真丝等易勾丝面料应选磁吸式固定（磁力≥300gs），避免传统针扣拉出永久性勾丝孔洞
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82%
Confidence
Long-term
Relevance
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Unverified厚重针织毛衣或大衣建议选择磁吸款，别针反复穿刺会导致粗针织物起球拉丝、大衣面料留下永久针孔；磁力≥3组磁片可稳固中大号胸针92% similarUnverified磁吸式胸针的磁力需达到1500高斯以上才能稳固固定针织毛衣等厚重面料，普通磁吸只适合衬衫、真丝等薄面料，否则容易滑落89% similarUnverified不建议为丝绸、羊绒等高价面料购买尖头单针胸针，反复穿刺会留下永久针孔；这类面料应选磁吸式(magnetic)胸针，通过磁力夹住面料无需穿刺89% similarUnverified针扣式（回形针/别针）胸针适合薄面料（真丝、雪纺），承重轻不易撕破布料；磁吸式胸针适合不想扎孔的高档面料，但磁力需≥1000高斯才能固定30g以上的胸针，否则易脱落89% similarUnverified别针式（直插针+安全扣）适合厚面料如西装、大衣；针盘式/磁吸式适合真丝、针织等易勾丝面料，磁吸吸力需≥1500高斯才不易脱落88% similar
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