[KongchangAI]
Unverified83% confidenceDecision RuleTime unknown

儿童头盔重量控制很关键:3岁以下建议<250g,过重会导致颈部疲劳、孩子低头或拒戴;一体成型(In-mold)工艺比拼接式更轻且吸能一致性更好

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