Distance from indenter centre to machine wall: 110mm. 1 x Diamond Vickers indenter. 3, Hardness test for depth and gradient of carbonised and quenched layers. Hardness resolution: 0.1HV. Test force: 0.09807, 0.2452, 0.4904, 0.9807, 1.961, 2.942, 4.904, 9.807N.
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