Random triples
| Subject | Object |
|---|---|
| gptkb:Vickers_hardness_test | diamond pyramid indenter |
| gptkb:Brinell_hardness_test | hardened steel ball |
| gptkb:Vickers_Hardness_Test | diamond pyramid |
| gptkb:Vickers_Hardness_Number_(HV) | diamond pyramid |
| gptkb:Brinell_Hardness_Test | hardened steel ball |
| gptkb:Brinell_hardness_test | carbide ball |
| gptkb:ASTM_E92 | diamond pyramid |
| gptkb:Rockwell_Hardness_Test | steel ball |
| gptkb:Rockwell_Hardness_Test | diamond cone |