[KongchangAI]
Unverified82% confidenceFactTime unknown

65Mn锰钢地钉经淬火处理后硬度高、弹性好,是硬地钉的主流材质;未热处理的普通碳钢圆钉敲击后易弯折且易生锈

1
Sources
82%
Confidence
Long-term
Relevance
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