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| with a Vickers number of (Tungsten carbide is extremely hard, ranking ~9 on Mohs scale, and with a Vickers number of 1700-2400 (WK) Alexander Demidov); with a Vickers number (nickel plating can have Vickers hardness readings up to one thousand, but inferior wear resistance to hard anodising with a Vickers number of less than 500 Alexander Demidov) | |||