Unverified90% confidenceFactTime unknown
五层瓦楞纸箱箱壁约7mm，结构为面纸-瓦楞-面纸-瓦楞-面纸，抗压和缓冲性能明显优于三层箱，适合重物和长期码垛存储
1
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90%
Confidence
Long-term
Relevance
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