洛氏硬度、布氏硬度、维氏硬度对照表洛氏硬度、布氏硬度、 洛氏硬度HRC 70.0 69.5 69.0 68.5 68.0 67.5 67.0 66.5 66.0 65.5 65.0 64.5 64.0 63.5 63.0 62.5 62.0 ...
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