Unverified82% confidenceFactTime unknown
常见手风琴包材质分三类：PP聚丙烯（防水耐磨最常见）、帆布（透气但不防水）、牛皮/PU（商务外观但重且贵），A4尺寸标准外径约33×24cm
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
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UnverifiedPP聚丙烯材质分类箱壁厚≥1.5mm可承重堆叠3层以上，无纺布箱仅适合轻质衣物且不可堆叠承重82% similarUnverified布艺/PP塑料材质轻便、防夹手且圆角安全但承重弱（单格通常≤5kg），实木/板材承重强（单层15kg+）但边角硬需额外贴防撞角，重玩具多选板材80% similarUnverified袋体材质厚度以PA+PE复合膜为佳，总厚度建议≥0.08mm（80丝），低于此值易被衣物金属拉链、纽扣刺破漏气；含毛衣针织等无硬物衣物可放宽到0.06mm79% similarUnverified无纺布/牛津布材质承重通常单格≤500g，装书本、瓶装物易变形下坠，重物收纳应选PVC硬质或带金属框架款式（整体承重≥5kg）78% similarUnverified袋体材质看复合层数：PA+PE双层复合厚度≥0.08mm密封性好耐扎；单层PE（≤0.05mm）便宜但反复使用3-5次后接缝易漏气78% similar
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