Process the hardness test in mechanical, metallurgy, national defense, scientific research, instrumentation. ... kind of hardness tester not only can process the hardness test in mechanical, metallurgy, national defense, scientific research, instrumentation ... about 50kg3) Main accessories:Coordinates of test bench: 1 piece 2.Sheet test bench: 1 pieceFine axle test unit: 1 pieceDiamond pyramid indenter: ...