Ikhodi yokuqina kwensimbi ithi H. Ngokwezindlela ezihlukene zokuhlola ubulukhuni, izethulo ezivamile zihlanganisa iBrinell (HB), Rockwell (HRC), Vickers (HV), Leeb (HL), Shore (HS) ubulukhuni, njll., phakathi kwazo I-HB ne-HRC zisetshenziswa kakhulu. I-HB inobubanzi obubanzi ...
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