Unverified82% confidenceDecision RuleTime unknown
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
1
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82%
Confidence
Long-term
Relevance
-
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Unverified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85% similarUnverified冰箱贴磁片直径≥15mm或采用钕铁硼强磁时，可稳固吸附单张A4纸；普通铁氧体软磁只能吸单张便签，吸不住照片纸+清单的叠加重量83% similarUnverified磁性标识贴的磁力由背胶磁片厚度决定，0.5mm橡胶磁片仅能固定单张贴片，需吸附文件时应选0.8mm以上磁片或加软磁复合层83% 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80% similarUnverified橡胶软磁贴的实际吸力约为0.02-0.05N/cm²，单个5×3cm标签贴理论承重仅几十克；需要在竖直面固定较重物件应选钕磁铁嵌入式磁贴而非橡胶软磁79% similar
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