Unverified80% confidenceDecision RuleTime unknown
塑料数字积木应确认边角经过圆角处理（R角≥2mm）且合模缝无毛刺，接缝处飞边是幼儿划伤主要来源
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80%
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Long-term
Relevance
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Unverified边角需为圆弧R角设计（半径≥5mm），硬质塑料箱重点检查上沿封边是否平滑无毛刺，注塑合模线未打磨的产品易划伤74% similarUnverified木质积木认准倒圆角（R角）工艺和无毛刺打磨，用手抚摸切面确认光滑；未做倒角的直角木块对幼儿磕碰风险高73% similarUnverified硬质框架磁吸板边缘需为包边或圆角软胶设计——急刹或碰撞时脱落的硬质板边可能划伤后排儿童，选购时确认板边无外露金属丝或锐利塑料边73% similarUnverified外框木质框选实木/多层板并检查封边是否光滑无毛刺，塑料框需确认ABS材质且无异味；廉价PVC框边缘毛刺易划伤儿童手指，触摸边缘判断做工71% similarUnverified刀口内弧半径应与婴儿甲面弧度贴合（弧口式），弧度过平会剪出尖角刮伤，弧度过深易剪到甲床两侧71% similar
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