Unverified80% confidenceDecision RuleTime unknown
填充物类型影响流沙均匀度：优质石英砂或金属粉流动顺畅不易卡颈，劣质彩色塑料珠或普通细沙受潮后易结块导致中途卡停，购买时可查看是否标注石英砂填充
1
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80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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