Unverified85% confidenceDecision RuleTime unknown
四合扣(揿钮)选铜材质而非铁材质，铁扣3-6个月即氧化生锈染污衣物，铜扣可用数年且不锈；婴幼儿服装应选无镍环保四合扣防过敏
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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