MODEL HBV-30A BRINELL & VICKERS HARDNESS TESTER MODEL HBV-30A BRINELL & VICKERS HARDNESS TESTERFeature & Use:Automatic testing process, no human operating ... and ASTM E10 It's suitable to determine the Vickers hardness of steel, non-ferrous metals, ceramics, treated layers ... of metal surface, and the hardness grads of carburized, nitrided and hardened layers of metals. ...