... of IC, thin plastics, metals thin slice . HBRVU-187.5 Brinell, Rockwell & Vickers Optical Hardness Tester with ... surface heat treatment and chemical heat treatment. Specifications ModelsHBRVU-187.5 Rockwell ScalesTesting ForceHRA, HRB, HRC, HRF,HRG60Kg ... 62.5,HBW5/62.5, HBW2.5/187.5306.5N(31.25Kg),612.9N(62.5Kg ... ),1839N(187.5Kg)Vickers ScalesTesting ForceHV30, HV10030Kg(294.2N ...