[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

选长度的关键是钉长≥被连接板材总厚度+1.5倍钉直径,例如连接3mm板用4.0mm钉时需选钉体长度≥9mm,太短则铆头翻边不足易脱落

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