[KongchangAI]
Unverified90% confidenceFactTime unknown

砂纸目数标准中,粗磨为40-80目,中磨100-180目,细磨240-400目,精磨/抛光600-2000目,2000目以上用于漆面镜面抛光

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90%
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Long-term
Relevance
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curl https://kongchang.com/api/v1/knowledge/claims/332775
MCP
get_claim(id=332775)