[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

承重需求超过20kg(如挂满电动工具、扳手套装)时选冷轧钢管+加厚焊接接头,管径≥25mm;塑料架单层承重普遍≤5kg,仅适合轻量手动工具

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