表1-46黑色金屬硬度及強(qiáng)度換算之二(GB1172-74)硬度抗拉強(qiáng)度MPa硬度抗拉強(qiáng)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] >>