... hours. By means of closed - circuit system for control , CPU controls testing force to load; ... device, the tester can take a photograph for testing indentation and materials metallographic composition TypeMHV-5 ... 2, 2.5, 3, 5, 10, 20, 30, 50Carriage ControlAutomatic(loading/holding-up of loading /unloading)Holding ... Hardness Tester MHV-5/10/30/50 for Glass, ceramics, agate China Vickers Hardness Tester ...