... Big factory owned by Chinese Academy of Science Micro Vickers hardness tester Hardness conversion function Built-in printer Auto Turret Digital Micro ... the microstructure of the material.4. With Vickers hardness and Knoop hardness testing capabilities, and testing force can be extended ... 3,HV0.5,HV1,HV2Conversion ScaleHRA,HRB,HRC,HRD, HK,HBS,H15N,H30N,H45N,H15T,H30T,H45TMin. Measuring Unit0.01μ ...