Improve the testing equipment, magnetic detection machines and hardness.
检验设备完善，有磁粉探伤机和硬度计。
Testing apparatuses include two polishing machines, one F20 spectrograph, one Rockwell hardness tester, and one metallomicroscope.
抛光机两台，F20光谱仪，洛氏硬度计，金相显微镜各一台。
Testing apparatuses include two polishing machines, one F20 spectrograph, one Rockwell hardness tester, and one metallomicroscope.
抛光机两台，F20光谱仪，洛氏硬度计，金相显微镜各一台。
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