Unverified78% confidenceCautionTime unknown
若追求磁性教学功能,别选普通黑板漆面板(磁力弱吸不住磁力片),应确认为镀锌钢或搪瓷钢基材的磁性面
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
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