Unverified80% confidenceDecision RuleTime unknown
内径尺寸建议不超过40cm×30cm×30cm，装满A4书本后单箱重量控制在20kg以内，超过此体积单人搬运时腰背负荷过大
1
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80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified专为书籍等重物设计，体积小是为了防止装满后超重搬不动，40×30×30cm装满书约25-30kg已接近单人搬运极限87% similarUnverified常见规格中，60×40×50cm的中号箱最通用，单箱装满重量控制在20kg以内以便单人搬运；装书优先用40×30×30cm小号箱，避免装满后过重搬不动86% similarUnverified尼龙扎带宽度决定承重：宽度2.5mm约承重8kg，3.6mm约18kg，4.8mm约22kg，7.6mm约50kg以上，捆扎行李箱杆或重物选4.8mm起85% similarUnverified托运箱选28寸+（三边之和158cm内免超尺费），空箱自重控制在4.5kg以内为佳，避免装满后逼近或超过23kg免费托运额度85% similar
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