Superseded82% confidenceDecision RuleTime unknown
防推倒稳定性优先选带宽底座支脚或可壁挂固定的三面围栏，围栏总重≥8kg或有膨胀螺丝固定，能承受学步儿童10kg以上的扶靠推力
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This knowledge claim has been superseded by newer content
儿童园所/校园用卡套优先选断裂扣（防勒扣）挂绳，扣力阈值≤2kg，遇外力可自动脱开，避免挂绳缠绕颈部造成勒伤风险Sources
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