Superseded90% confidenceDecision RuleTime unknown
36个月以下幼儿玩沙时，配件避免选带尖锐边角或直径<3.17cm（小零件测试管标准）的小配件，防误吞窒息
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Long-term
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This knowledge claim has been superseded by newer content
3岁以下幼儿的乐器玩具，任何可拆卸部件直径必须≥3.17cm（能通过小零件测试筒即为不合格），沙锤内的填充颗粒必须完全密封无法拆出，避免误吞窒息风险Sources
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