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在有关工件的图纸上,出现了以下几种硬度技术条件的标注方法,其中正确的是()
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在有关工件的图纸上,出现了以下几种硬度技术条件的标注方法,其中正确的是()
A.12~15HRC
B.HV800
C.500HBW
D.229HB
正确答案:500HBW
Tag:
工程材料
工件
硬度
时间:2023-12-23 15:30:51
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