Engine by 
Today
79
Hardness test
| Instrument | Rockwell Hardness Tester |
| Manufacturer | SINOWON |
| Model / Serial No. | SHR-150C/HT201001 |
| Detail | Rockwell B hardness test force of 100 kgf, tungsten carbide composite for ball indenter with a diameter of 1/16". The test piece in accordance with JIS Z 2245 |
