Unverified80% confidenceDecision RuleTime unknown
颗粒精度决定拼插手感：优质ABS料件公差控制在±0.02mm内，插拔松紧适中；劣质料件过松易散架、过紧幼儿掰不动且伤手，选购时优先看用户对'松紧度'的评价
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