Unverified85% confidenceDecision RuleTime unknown
免组装床架的钢管管径直接决定承重上限，主承重横梁管径≥25mm且壁厚≥1.0mm可稳定支撑200kg以内，管径＜22mm或壁厚＜0.8mm易出现中间塌陷和异响
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85%
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