Unverified80% confidenceFactTime unknown
搪瓷杯的杯口卷边（rolled rim）工艺会影响耐用度和触感，卷边处涂层最薄最易崩瓷，选购时应检查卷边是否光滑均匀无气泡
1
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80%
Confidence
Long-term
Relevance
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