... hardness test in mechanical, metallurgy, national defense, scientific research, instrumentation. 1) This kind of hardness tester not only can process the ... rapid and accurate.2) The main parameter:Measuring range: 5-3000HVTesting force: 1.961, 2.942, 4.903, 9.807, 19.61 ... , 49.03 Newton (0.2, 0.3, 0.5, 1, 2, 2.5, 3, 5 kgf)The maximum height of sample permissible: 130mmThe distance ...