Unverified85% confidenceFactTime unknown
磁吸力强弱取决于面板背后的整块冷轧钢板厚度：优质款钢板≥0.3mm能吸住A4纸+3块磁贴叠加；铝合金或塑料背板款几乎无磁性，只能靠弱磁贴纸勉强吸单张薄纸
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85%
Confidence
Long-term
Relevance
-
First Seen
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Unverified厚度＜0.5mm的软磁贴磁力弱，仅能吸附单张便签重量；需固定A4纸或多页文件时应选厚度≥0.8mm或分层橡胶磁材质，否则纸张会滑落85% similarUnverified金属货架/机柜标识优先磁吸标签牌，磁力≥1.5kg吸附力可防脱落且不留胶痕，木质/塑料表面则磁吸无效需改卡扣或绳绑84% similarUnverified覆膜纸板+软磁片材质，比普通贴纸书耐撕扯、可反复粘贴，但软磁片边角长期使用后可能出现起翘或磁性减弱，不如硬磁片款耐久84% similarUnverified磁性白板需选钢板基材（非纯树脂涂层），钢板厚度≥0.3mm才能牢固吸住A4纸+磁贴，判断方法是看产品是否标注'钢制烤漆板面'而非'PP膜'84% similarUnverified薄型软磁贴长期贴在垂直金属面(如文件柜侧面)会因自重缓慢下滑，垂直悬挂大尺寸(A4以上)应选1mm厚强磁或背面加磁扣83% similar
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