Unverified85% confidenceFactTime unknown
耐用性核心看面料克数与耐磨点：1000D尼龙或600D以上PVC涂层耐磨抗撕；底部与绑带受力处应有加固层。TPU防水面料耐候性优于PU（PU长期日晒易水解开裂）
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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Unverified耐磨看底部和外层面料克重：底部宜有加厚耐磨层(如1000D尼龙或TPU),整体面料建议≥400D;倒地摩擦、频繁地面放置的场景低克重薄面料易磨破80% similarUnverifiedTPU材质厚度≥0.3mm的透明袋防漏性和抗撕裂性明显优于PVC，长期反复折叠不易在折痕处开裂，适合高频出行者77% similarUnverifiedPVC材质厚度≥0.25mm（0.25mm=约0.25mm壁厚）耐压耐磨更好，薄款(<0.18mm)易被指甲、沙砾扎破；无缝热合工艺比拼接款漏气率低77% similarUnverified牛津布密度选600D以上（普通300D布料易磨破变形），底板厚度≥3mm的PVC或PP板才能保证装满后不塌陷、拿放平稳76% similarUnverified耐磨度看材质克重：弹力布≥180g/㎡才耐托运摩擦，普通薄款100-120g/㎡飞两三次就起球破洞；追求防刮选加厚牛津布或PVC硬套76% similar
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