Unverified80% confidenceSolutionTime unknown
深划痕见底（露出金属/玻璃基材）单靠补漆笔无法平整，正确流程为：清洁脱脂→细砂纸打磨毛边→分层薄涂填补→干燥后极细砂纸抛光→上光油，缺任一步都会留下明显补痕
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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