Ключевые слова:
Conversion, Cast-iron, Hardness measurement, Hardness, Vickers hardness measurement, Copper, Tool steels, Alloy steels, Non-ferrous metals, Brass, Steels, Heat-treatable steels, Brinell hardness measurement, Rockwell hardness measurement, Metals, Non-ferrous alloys, Unalloyed steels, Aluminium, Hardmetals, Aluminium alloys, High-speed tool steels