Unverified85% confidenceFactTime unknown
全铜针扣(solid brass)不生锈会氧化包浆,锌合金电镀扣头易掉漆露底色,看扣头背面是否有实心厚重感可辨别材质
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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