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 表1-46黑色金屬硬度及強度換算之二(GB1172-74)硬度抗拉強度MPa硬度抗拉強度MPa洛氏表面洛氏維氏布氏洛氏表面洛氏維氏布氏HRBHR15THR30THR45THVHB10D2d10、2d54d2.5mmHRBHR15THR30THR45THVHB10D2d10、2d54d2.5mm100.099.098.097.096.095.094.093.092.091.090.089.088.087.08 (共 1250 字) [閱讀本文] >>