Ukuhlolwa kokuqina okujwayelekile kufaka phakathi: I-Rockwell Hardness (HR), i-Surface Rockwell Hardness (HR), i-Vickers Hardness (HV), i-Micro Vickers Hardness (HV), i-Knoop Hardness (HK), i-Brinell Hardness (HB) , ukuqina kwe-Leeb (HL) (i-rebound indlela), ukuhlolwa kokuqina kwe-ultrasonic (UCI), Ukuqina koShore (SHORE).
Isikhathi sokuthumela: Sep-08-2022