Unverified80% confidenceDecision RuleTime unknown
材质硬度选ABS或PP工程塑料而非软硅胶：软硅胶套虽护刃但抗刺穿差，尖刀在跌落时可穿透套体；硬塑料套壁厚需≥1.5mm才能有效防刺穿
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80%
Confidence
Long-term
Relevance
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